Useful vs Impact - What's the difference?
useful | impact |
Having a practical or beneficial use.
* {{quote-magazine, year=2013, month=July-August, author=
, title= '', ''useful for '' and ''useful to ''. The words ''useful to'' are also found in construction such as ''It is useful to do'', in which ''to marks an infinitive rather than being a preposition.
The striking of one body against another; collision.
The force or energy of a collision of two objects.
(chiefly, medicine) A forced impinging.
A significant or strong influence; an effect.
To compress; to compact; to press or pack together.
(proscribed) To influence; to affect; to have an on.
To collide or strike.
As an adjective useful
is having a practical or beneficial use.As a noun impact is
the striking of one body against another; collision.As a verb impact is
to compress; to compact; to press or pack together.useful
English
Adjective
(en adjective)Lee S. Langston, magazine=(American Scientist)
The Adaptable Gas Turbine, passage=Turbines have been around for a long time—windmills and water wheels are early examples. The name comes from the Latin turbo'', meaning ''vortex , and thus the defining property of a turbine is that a fluid or gas turns the blades of a rotor, which is attached to a shaft that can perform useful work.}}
Usage notes
* Prepositions: useful'' is used in ''useful forSynonyms
* noteful * serviceable * utilitarianAntonyms
* unuseful * useless * harmfulimpact
English
Noun
(en noun)- The hatchet cut the wood on impact .
- His spine had an impingement; L4 and L5 made impact , which caused numbness in his leg.
- His friend's opinion had an impact on his decision.
- Our choice of concrete will have a tremendous impact on the building's mechanical performance.
Usage notes
* Adjectives often applied to "impact": social, political, physical, positive, negative, good, bad, beneficial, harmful, significant, great, important, strong, big, small, real, huge, likely, actual, potential, devastating, disastrous, true, primary. * The adposition generally used with "impact" is "on" (such as in last example in section above) * There are English speakers who are so ). In defensive editing, the solution is to replace the figurative noun sense with effect'' and the verb sense with ''affect , which nearly always produces an acceptable result. (Rarely, a phrase such as "the impact of late effects" is better stetted to avoid "the effect of [...] effects".)Derived terms
* impactful * impactive * impact statement * Western impactVerb
(en verb)- If fecal incontinence is caused by impacted stool in the rectum, the impaction must be removed.
- ''I can make the changes, but it will impact the schedule.
- When the hammer impacts the nail, it bends.