formulate vs give voice

formulate and give voice both are verbs.

Word	Noun	Adjective	Verb	Adverb
formulate	No	No	Yes	No
give voice	No	No	Yes	No

As verbs, formulate and give voice are synonyms defined as:

Other synonyms of formulate include articulate, phrase, word.

formulate (verb)	give voice (verb)
put into words or an expression	put into words or an expression
elaborate, as of theories and hypotheses
come up with (an idea, plan, explanation, theory, or principle) after a mental effort
prepare according to a formula