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Sine vs Sign - What's the difference?

sine | sign |

As nouns the difference between sine and sign

is that sine is in a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse while sign is a visible indication.

As a verb sign is

to make a mark.

sine

English

(wikipedia sine)

Noun

(en noun)
  • (trigonometry, mathematics) In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse.
  • Usage notes

    In various branches of mathematics, the sine of an angle is determined in various ways, including the following: * The y''-coordinate]] of the point on the unit circle at the given anticlockwise angle from the [[x-axis, ''x -axis. * The sum of the real or complex power series

         \sum_{n=1}^\inftyx^{2n-1} = x - {1\over 6} x^3 + {1\over 120} x^5 - {1\over 5040} x^7 + ...

    where x is in radians.

    Synonyms

    * Symbol: sin

    Derived terms

    * arcsine * cosine * sine wave * sinusoid * sinusoidal

    See also

    * cosecant * cotangent * secant * tangent * trigonometry

    Anagrams

    * ----

    sign

    English

    (wikipedia sign)

    Etymology 1

    From (etyl) signe, from (etyl) ; root uncertain.

    Noun

    (en noun)
  • (sometimes, also used uncountably) A visible indication.
  • *
  • , title=(The Celebrity), chapter=5 , passage=Although the Celebrity was almost impervious to sarcasm, he was now beginning to exhibit visible signs of uneasiness, the consciousness dawning upon him that his eccentricity was not receiving the ovation it merited.}}
  • A clearly visible object, generally flat, bearing a short message in words or pictures.
  • * Macaulay
  • The shops were, therefore, distinguished by painted signs , which gave a gay and grotesque aspect to the streets.
  • A traffic sign.
  • A meaningful gesture.
  • Any of several specialized non-alphabetic symbols.
  • (astrology) An astrological sign.
  • (mathematics) Positive or negative polarity.
  • A specific gesture or motion used to communicate by those with speaking or hearing difficulties; now specifically, a linguistic unit in sign language equivalent to word in spoken languages.
  • *, II.12:
  • And why not, as well as our dumbe men dispute, argue and tell histories by signes ?
  • * 2007 , Marcel Danesi, The Quest for Meaning :
  • In American Sign Language (ASL), for instance, the sign for 'catch' is formed with one hand (in the role of agent) moving across the body (an action) to grasp the forefinger of the other hand (the patient).
  • (uncountable) Sign language in general.
  • An omen.
  • (medicine) A property of the body that indicates a disease and, unlike a symptom, is unlikely to be noticed by the patient.
  • A military emblem carried on a banner or standard.
  • (Milton)
    Derived terms
    * air sign * astrological sign * earth sign * fire sign * high sign * Indian sign * minus sign * neon sign * plus sign * road sign * sign language * sign of life * star sign * street sign * traffic sign * vital sign * water sign

    Etymology 2

    From (etyl) (seigner), (seiner) et al., (etyl) signer et al., and their source, (etyl) ; see Etymology 1, above. Compare (sain).

    Verb

    (en verb)
  • To make a mark
  • #
  • #:The Queen signed her letter with the regal signet.
  • # To mark, to put or leave a mark on.
  • #*1726 , Elijah Fenton, The Odyssey of Homer :
  • #*:Meantime revolving in his thoughtful mind / The scar, with which his manly knee was sign'd […].
  • # To validate or ratify (a document) by writing one's signature on it.
  • #*c. 1597 , (William Shakespeare), The Merchant of Venice :
  • #*:Enquire the Iewes house out, giue him this deed, / And let him signe it […].
  • # More generally, to write one's signature on (something) as a means of identification etc.
  • I forgot to sign that letter to my aunt.
  • #
  • #:Just sign your name at the bottom there.
  • #:I received a letter from some woman who signs herself ‘Mrs Trellis’.
  • # To write one's signature.
  • Please sign on the dotted line.
  • # To finalise a contractual agreement to work for a given sports team, record label etc.
  • #*2011 , The Guardian , (headline), 18 Oct 2011:
  • #*:Agents say Wales back Gavin Henson has signed for Cardiff Blues.
  • # To engage (a sports player, musician etc.) in a contract.
  • It was a great month. I managed to sign three major players.
  • To make the sign of the cross
  • # To bless (someone or something) with the sign of the cross; to mark with the sign of the cross.
  • #* Book of Common Prayer
  • #*:We receive this child into the congregation of Christ's flock, and do sign him with the sign of the cross.
  • #*1971 , , Religion and the Decline of Magic , Folio Society 2012, p. 34:
  • #*:At the baptismal ceremony the child was […] signed with the cross in holy water.
  • # (reflexive) To cross oneself.
  • #*1855 , (Robert Browning), Men and Women :
  • #*:Shaking a fist at him with one fierce arm, / Signing himself with the other because of Christ.
  • To indicate
  • # To communicate using a gesture or signal.
  • #* Sir Walter Scott:
  • I signed to Browne to make his retreat.
  • # To communicate using gestures to (someone).
  • #:He signed me that I should follow him through the doorway.
  • # To use sign language.
  • # To furnish (a road etc.) with signs.
  • Derived terms
    * sign in * signing bonus * sign off * sign on * sign over * sign out * sign up * sign one's life away

    Anagrams

    *