If you're able to juggle, you'll go far in life. To be able is to have the skill, knowledge, or permission to do something.

Able is an adjective that describes the ability to do a particular thing, like your friend who's able to ride a motorcycle and your dog that's able to roll over on command. It can also mean very skilled or capable, as when you describe your sister as an able tap dancer. Able comes from the Latin word habilis, "easily handled or apt." The h is silent in Latin, which led to it being dropped from the English able.

Definitions of able

adj (usually followed by `to') having the necessary means or skill or know-how or authority to do something

able to swim”
“she was able to program her computer”
“we were at last able to buy a car”
able to get a grant for the project”
(usually followed by `to') not having the necessary means or skill or know-how

adj have the skills and qualifications to do things well

able teachers”
properly or sufficiently qualified or capable or efficient

adj having inherent physical or mental ability or capacity

able to learn”
“human beings are able to walk on two feet”
“Superman is able to leap tall buildings”
(usually followed by `of') having capacity or ability

adj having a strong healthy body

“an able seaman”
“every able-bodied young man served in the army”
physically and mentally sound or healthy

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