American Dictionary

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Definition sharpen in American English

sharpen verb

verb
/ˈʃɑrpən/
1

to make something such as a knife, tool, or pencil sharp

Synonyms and related words
2

to improve or make something improve

Example

The program will give young athletes the chance to sharpen their skills.

Synonyms and related words
3

to become or to make something stronger or more noticeable

Example

His speech served only to sharpen the differences between the two men.

Definition sharpen in American English