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Function vs Have - What's the difference?

function | have |

As a noun function

is what something does or is used for.

As a verb function

is to have a function.

As an adjective have is

gaunt; pale and thin.

function

English

Noun

(en noun)
  • What something does or is used for.
  • * {{quote-magazine, year=2013, month=May-June, author= Katrina G. Claw
  • , title= Rapid Evolution in Eggs and Sperm , volume=101, issue=3, magazine=(American Scientist) , passage=Many genes with reproductive roles also have antibacterial and immune functions , which indicate that the threat of microbial attack on the sperm or egg may be a major influence on rapid evolution during reproduction.}}
  • A professional or official position.
  • (senseid)An official or social occasion.
  • A relation where one thing is dependent on another for its existence, value, or significance.
  • (mathematics) A relation in which each element of the domain is associated with exactly one element of the codomain.
  • (computing) A routine that receives zero or more arguments and may return a result.
  • (biology) The physiological activity of an organ or body part.
  • (chemistry) The characteristic behavior of a chemical compound.
  • (anthropology) The role of a social practice in the continued existence of the group.
  • Synonyms

    * (what something does or is used for) aim, intention, purpose, role, use * (professional or official position) occupation, office, part, role * (official or social occasion) affair, occasion, social occasion, social function * many-to-one map, many-to-one mapping, mathematical function, operation, transformation * procedure, routine, subprogram, subroutine

    Hypernyms

    * (mathematics) relation

    Derived terms

    * absolutely continuous function * acidity function * adaptive-control function * additive function * additive set function * adjoint wave function * aggregate function * Airy function * Airy stress function * algebraic function * almost-periodic function * alternating function * analytic function * analytical function generator * anatomy of function * antihyperbolic function * antisymmetric wave function * antisymmetrized wave function * antitrigonometric function * arc-hyperbolic function * autocorrelation function * Baire function * bei function * ber function * Bessel function * beta function * bifunctional * biharmonic function * Bloch function * Boolean function * Borel measurable function * bounded function * boxcar function * Brillouin function * built-in function * Cantor function * characteristic function * circular function * cofunction * comparable function * complementary function * complete class of decision function * composite function * compressadensity function * computable function * concave function * confluent hypergeometric function * conjugate convex function * connect function * constant function * constraint function * contiguous function * continuous function * convex function * cosine function * cost function * countably additive set function * countably subadditive set function * critical function * cross-correlation function * cyclosymmetric function * cylinder function * decreasing function * delta function * density function * describing function * differentiable function * difunctional * digamma function * diode function generator * Dirac wave function * discriminant function * disfunction * dissipation function * driving-point function * dysfunction * effectively computable function * eigenfunction * eigenfunction expansion * Einstein partition function * electron wave function * electronic work function * elementary function * elementary symmetric function * elliptic function * Emden function * entire function * equivalent propositional function * error function * essentially bounded function * Euler's phi function * even function * excitation function * executive ego function * explicit function * exponential density function * exponential function * exponential generating function * feedback transfer function * Fermi-Dirac distribution function * form function * forward transfer function * Fowler function * frontogenetic function * function code * function failure safety * function generator * function key * function multiplier * function object * function space * function switch * function table * function unit * function-evaluation routine * functional * functionalism * functionality * gamma function * general-purpose function generator * generalized transmission function * generating function * Green's function * Hamiltonian function * Hammett acidity function * Hankel function * harmonic function * Heaviside unit function * hei function * her function * Hildebrand function * homogeneous function * Hugoniot function * hybrid wave function * hyperbolic function * hypergeometric function * identity function * implicit function * implicit function theorem * impulse function * incidence function * incomplete beta function * incomplete gamma function * increasing function * independent function * influence function * information function of a partition * initial mass function * inner function * integrable function * integral function * invariant function * inverse function * inverse function theorem * inverse hyperbolic function * inverse trigonometric function * inverting function * J function * Jacobian elliptic function * jump function * kei function * ker function * Koebe function * Lagrange stream function * Lagrangian function * * * Langevin function * left-continuous function * Legendre function * Leverett function * line function * linear discriminant function * linear function * Liouville function * locally integrable function * logarithmic trigonometric function * logarithmically convex function * loop transfer function * loss function * lower semicontinuous function * luminosity function * Lyapunov function * malfunction * malfunction routine * Massieu function * mathematical function program * Mathieu function * Maxwell's stress function * measurable function * membership function * meromorphic function * microspec function * minimal brain dysfunction syndrome * Minkowski distance function * * modified Bessel function * modified Hankel function * moment generating function * momentum wave function * monofunctional compound * monogenic analytic function * monotone function * monotone nondecreasing function * monotone nonincreasing function * monotonic increasing function * Morera's stress function * multifunction array radar * multilinear function * multiplicative number-theoretic function * natural function * Neumann function * nonfunctional packages software * normal density function * normalized function * normalized support function * NOT function * nuclear response function * number-theoretic function * objective function * odd function * optimizing control function * orthogonal function * orthonormal function * parabolic cylinder function * partial function * partial recursive function * particle distribution function * partition function * Patterson function * penalty function * periodic function * phase function * piecewise-continuous function * Planck function * point characteristic function * point function * Poisson density function * polynomial function * positive linear functional * positive real function * power function * predefined function * principal function * probability density function * probability mass function * programmed function key * proper rational function * propositional function * psi function * pulsed transfer function * quadratic function * Rademacher function * radial distribution function * radicofunctional name * random function * rational function * Rayleigh's dissipation function * real-valued function * recursive function * regular function * regulatory control function * restricted function * Riccati-Bessel function * Riemann function * Riemann P function * Riemann zeta function * sample function * scalar function * scattering function * * self-dual switching function * self-organizing function * sensitivity function * separated-function synchrotron * set function * sharpness function technique * shear-viscosity function * sigma function * simple function * simply periodic function * single-valued function * sinusoidal function * skewed density function * Smarandache function * source function * special function * spectral function * spherical Bessel function * staff function * step function * step-function generator * Stokes stream function * stress function * subadditive function * subadditive set function * subfunction * subfunctional * subharmonic function * subsine function * summable function * superadditive function * superharmonic function * support function * switch function * switching function * symmetric function * tapped-potentiometer function generator * test function * tetrafunctional molecule * thermionic work function * thermodynamic function of state * theta function * tool-function controller * torsion function * transcendental function * transfer function * transition function * transmission function * trigamma function * trigonometric cofunction * trigonometric function * truth function * Turing computable function * universal transmission function * universal wavelength function * upper semicontinuous function * user-defined function * variable diode function generator * vector function * viscous dissipation function * wave function * Wannier function * Weierstrass function * Weierstrassian elliptic function * weight function * work function

    Verb

    (en verb)
  • to have a function
  • to carry on a function; to be in action
  • Synonyms

    * (to have a function) officiate, serve * (to carry on a function) go, operate, run, work

    Antonyms

    * (to carry on a function) malfunction

    have

    English

    Verb

    : Additional archaic forms are second-person singular present tense hast 'and second-person singular past tense''' hadst''' or ' haddest .
  • To possess, own, hold.
  • I have a house and a car.
    Look what I have here — a frog I found on the street!
  • To be related in some way to (with the object identifying the relationship).
  • I have two sisters.
    The dog down the street has a lax owner.
  • To partake of a particular substance (especially a food or drink) or action.
  • I have breakfast at six o'clock.
    Can I have a look at that?
    I'm going to have some pizza and a beer right now.
  • Used in forming the and the past perfect aspect.
  • I have already eaten today.
    I had already eaten.
  • must.
  • I have to go.
    Note: there's a separate entry for have to .
  • To give birth to.
  • The couple always wanted to have children.
    My wife is having the baby right now!
  • To engage in sexual intercourse with.
  • He's always bragging about how many women he's had .
  • To accept as a romantic partner.
  • Despite my protestations of love, she would not have me.
  • (transitive with bare infinitive ) To cause to, by a command or request.
  • They had me feed their dog while they were out of town.
  • (transitive with adjective or adjective-phrase complement ) To cause to be.
  • He had him arrested for trespassing.
    The lecture's ending had the entire audience in tears.
  • (transitive with bare infinitive ) To be affected by an occurrence. (Used in supplying a topic that is not a verb argument.)
  • The hospital had several patients contract pneumonia last week.
    I've had three people today tell me my hair looks nice.
  • (transitive with adjective or adjective-phrase complement ) To depict as being.
  • Their stories differed; he said he'd been at work when the incident occurred, but her statement had him at home that entire evening.
    Anton Rogan, 8, was one of the runners-up in the Tick Tock Box short story competition, not Anton Rogers as we had it.'' — ''The Guardian .
  • Used as interrogative auxiliary verb with a following pronoun to form tag questions. (For further discussion, see "Usage notes" below)
  • We haven't eaten dinner yet, have we ?
    Your wife hasn't been reading that nonsense, has she ?
    (UK usage) He has some money, hasn't he ?
  • (British, slang) To defeat in a fight; take.
  • I could have him!
    I'm gonna have you!
  • (Irish) To be able to speak a language.
  • I have no German .
  • To feel or be (especially painfully) aware of.
  • Dan certainly has arms today, probably from scraping paint off four columns the day before.
  • To be afflicted with, to suffer from, to experience something negative
  • He had a cold last week.
    We had a hard year last year, with the locust swarms and all that.
  • To trick, to deceive
  • You had me alright! I never would have thought that was just a joke.
  • (often with present participle) To allow
  • * 1922 , (Virginia Woolf), (w, Jacob's Room) Chapter 2
  • "You're a very naughty boy. If I've told you once, I've told you a thousand times. I won't have you chasing the geese!"

    Usage notes

    Interrogative auxiliary verb have ...?' (''third-person singular'' '''has ...?''', ''third-person singular negative'' '''hasn't ...?''' ''or'' '''has ... not?''', ''negative for all other persons, singular and plural'' '''haven't ...?''' ''or'' '''have ... not? ); ''in each case, the ellipsis stands for a pronoun * Used with a following pronoun to form tag questions after statements that use "have" to form the perfect tense or (in UK usage) that use "have" in the present tense. *: We haven't eaten dinner yet, have we ? *: Your wife hasn't been reading that nonsense, has she ? *: I'd bet that student hasn't studied yet, have they ? *: You've known all along, haven't you ? *: The sun has already set, has it not ? *: (UK usage'') He has some money, hasn't he ? (''see usage notes below ) * This construction forms a tag that converts a present perfect tense sentence into a question. The tag always uses an object pronoun substituting for the subject. Negative sentences use has'' or ''have'', distinguished by number. Affirmative sentences use the same followed by ''not'', or alternatively, more commonly, and less formally, ''hasn't'' or ''haven't . (See ). * In American usage, this construction does not apply to present tense sentences with has'' or ''have , or their negations, as a verb; it does not apply either to the construction "have got". In those cases, use "does" or its negation instead. For example: "He has some money, doesn't he?" and "I have got enough time, don't I?" These constructions with "do", "does", "don't" or "doesn't" are considered incorrect in UK usage.

    Derived terms

    * -'ve * be had * have a ball * have a cow * have at you * have it in for * have it off * have had enough * have had it * have nots * have someone on * have to * haves

    See also

    * auxiliary verb * past tense * perfect tense

    References