Dictionary.com
Thesaurus.com
Synonyms

able

1 American  
[ey-buhl] / ˈeɪ bəl /

adjective

abler, ablest
  1. having necessary power, skill, resources, or qualifications; qualified.

    able to lift a two-hundred-pound weight; able to write music; able to travel widely; able to vote.

    Synonyms:
    fitted, fit
    Antonyms:
    incompetent
  2. having unusual or superior intelligence, skill, etc..

    an able leader.

    Synonyms:
    ingenious, clever, skilled, talented
  3. showing talent, skill, or knowledge.

    an able speech.

    Synonyms:
    apt
  4. legally empowered, qualified, or authorized.


noun

  1. Usually Able a code word formerly used in communications to represent the letter A.

-able 2 American  
  1. a suffix meaning “capable of, susceptible of, fit for, tending to, given to,” associated in meaning with the word able, occurring in loanwords from Latin (laudable ); used in English as a highly productive suffix to form adjectives by addition to stems of any origin (teachable; photographable ).


able 1 British  
/ ˈeɪbəl /

adjective

  1. (postpositive) having the necessary power, resources, skill, time, opportunity, etc, to do something

    able to swim

  2. capable; competent; talented

    an able teacher

  3. law qualified, competent, or authorized to do some specific act

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

-able 2 British  

suffix

  1. capable of, suitable for, or deserving of (being acted upon as indicated)

    enjoyable

    pitiable

    readable

    separable

    washable

  2. inclined to; given to; able to; causing

    comfortable

    reasonable

    variable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

Able, capable, competent all mean possessing adequate power for doing something. Able implies power equal to effort required: able to finish in time. Capable implies power to meet or fulfill ordinary requirements: a capable worker. Competent suggests power to meet demands in a completely satisfactory manner: a competent nurse.

Other Word Forms

  • -ability suffix
  • -ably suffix
  • overable adjective
  • overably adverb

Etymology

Origin of able1

First recorded in 1275–1325; Middle English, from Middle French, from Latin habilis “handy,” equivalent to hab(ēre) “to have, hold” + -ilis adjective suffix; -ile

Origin of -able2

Middle English < Old French < Latin -ābilis, equivalent to -ā- final vowel of 1st conjugation v. stems + -bilis