To give up; abandon (a plan, policy, etc.)
To cease making or manufacturing:
To leave, as in danger or out of necessity; forsake; desert
To discard is defined as to get rid of something or throw something away.
Find another word for outgrow. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for outgrow, like: leave-behind, grow beyond, relinquish, discontinue, give up, abandon and discard.