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 10 synonyms, antonyms, idiomatic expressions, and related words for outgrow, like: grow beyond, leave-behind, grow-out-of, relinquish, discontinue, give up, abandon, discard, outlive and become attached to.