tuck away vs tuck in

tuck away and tuck in both are verbs.

Word	Noun	Adjective	Verb	Adverb
tuck away	No	No	Yes	No
tuck in	No	No	Yes	No

As verbs, tuck away and tuck in are synonyms defined as:

tuck away and tuck in: eat up; usually refers to a considerable quantity of food

Other synonyms of tuck away include put away.

tuck away (verb)	tuck in (verb)
eat up; usually refers to a considerable quantity of food	eat up; usually refers to a considerable quantity of food