prove oneself
Verb
Meaning
show one's ability or courage
Source: WordNetSynonyms
assert oneself
live up to
prove yourself
put one's money where their mouth is
back up one's words with actions
confront the situation
demonstrate ability
establish itself
prove himself
have something to prove
reach potential
act on one's convictions
adapt and excel
atone for one's actions
back one's statements with actions
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Hypernyms
Examples
If one of the problems of marriage is that safety can lead to complacency, then one of the advantages of being single is that one is never safe enough to grow complacent, and constantly having to prove oneself often leads to growth.