noun ge·nius \ˈjēn-yəs, ˈjē-nē-əs\

: a very smart or talented person : a person who has a level of talent or intelligence that is very rare or remarkable

: a person who is very good at doing something

: great natural ability : remarkable talent or intelligence

plural ge·nius·es or ge·nii \-nē-ˌī\

Full Definition of GENIUS

a plural genii :  an attendant spirit of a person or place
b plural usually genii :  a person who influences another for good or bad
:  a strong leaning or inclination :  penchant
a :  a peculiar, distinctive, or identifying character or spirit
b :  the associations and traditions of a place
c :  a personification or embodiment especially of a quality or condition
plural usually genii :  spirit, jinni
plural usually geniuses
a :  a single strongly marked capacity or aptitude <had a genius for getting along with boys — Mary Ross>
b :  extraordinary intellectual power especially as manifested in creative activity
c :  a person endowed with transcendent mental superiority; especially :  a person with a very high IQ

Examples of GENIUS

  1. Albert Einstein and Isaac Newton were great scientific geniuses.
  2. You don't have to be a genius to see that this plan will never work.
  3. He was a genius at handling the press.
  4. She's now widely recognized as an artist of genius.
  5. He's admired for his comic genius.
  6. My plan is simple—that's the genius of it.
  7. The genius of these new computers is their portability.

Origin of GENIUS

Latin, tutelary spirit, natural inclinations, from gignere to beget
First Known Use: 1513

Synonym Discussion of GENIUS

gift, faculty, aptitude, bent, talent, genius, knack mean a special ability for doing something. gift often implies special favor by God or nature <the gift of singing beautifully>. faculty applies to an innate or less often acquired ability for a particular accomplishment or function <a faculty for remembering names>. aptitude implies a natural liking for some activity and the likelihood of success in it <a mechanical aptitude>. bent is nearly equal to aptitude but it stresses inclination perhaps more than specific ability <a family with an artistic bent>. talent suggests a marked natural ability that needs to be developed <has enough talent to succeed>. genius suggests impressive inborn creative ability <has no great genius for poetry>. knack implies a comparatively minor but special ability making for ease and dexterity in performance <the knack of getting along>.
GENIUS Defined for Kids


noun ge·nius \ˈjēn-yəs\

Definition of GENIUS for Kids

:  a very smart or gifted person
:  great natural ability <He has artistic genius.>
:  a very clever or smart quality <The lads came … chattering all the time about Tom's stupendous plan and admiring the genius of it. — Mark Twain, Tom Sawyer>
Medical Dictionary


noun ge·nius \ˈjē-nyəs, -nē-əs\
plural ge·nius·es or ge·nii \-nē-ˌī\

Medical Definition of GENIUS

:  extraordinary intellectual power especially as manifested in creative activity
:  a person endowed with transcendent mental superiority; specifically :  a person with a very high IQ


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