competent vs able

competent and able both are adjectives.

Word	Noun	Adjective	Verb	Adverb
competent	No	Yes	No	No
able	No	Yes	No	No

competent (adjective)	able (adjective)
properly or sufficiently qualified or capable or efficient	(usually followed by `to') having the necessary means or skill or know-how or authority to do something
legally qualified or sufficient	having inherent physical or mental ability or capacity
adequate, but not outstanding or exceptional	have the skills and qualifications to do things well
	having a strong healthy body