able is on the Basic English 850 List. a - able - about able is one of the 1000 most common headwords. a - able - about Able is on the Academic Vocabulary List. Pronunciation IPA (key): /eɪbl/ SAMPA: /eIbl/ Audio (US)(file) Homophone: Abel Adjective Positive able Comparative abler Superlative ablest If someone is able to do something, he can do it. I'm busy tomorrow, so I won't be able to see you. If a person is able, he is good or skillful at what he does. She is an able teacher. Synonyms bright capable available Related words -able (suffix) ability ably unable inability enable disable disabled skillWikiwand - on Seamless Wikipedia browsing. On steroids.