sharpen

verb

sharp·​en ˈshär-pən 

sharpened; sharpening ˈshär-pə-niŋ 

ˈshärp-niŋ

transitive verb

: to make sharp or sharper

especially : hone

intransitive verb

: to become sharp or sharper

sharpener

ˈshär-pə-nər 

ˈshärp-nər

noun

Synonyms of sharpen

• grind
• hone
• whet
• stone

Examples of sharpen in a Sentence

Can you sharpen the image?

The lecture sharpened my understanding of the topic.

The outlines of the mountains sharpened as we got closer.

Recent Examples on the Web

The passage of time has only sharpened the lessons of Entebbe for me. — Anne Neuberger, The Atlantic, 3 July 2026

Put another way, salt sharpens the tomato-y-ness of a tomato. — Los Angeles Times, 3 July 2026

The attention to sharpening those skills could be paying off. — Shreyas Laddha, Kansas City Star, 2 July 2026

Loose waves and smudged eye makeup, sharpened with pink at the inner corners, kept the effect closer to one of her stage looks. — Maggie Clancy, Footwear News, 3 July 2026

Word History

First Known Use

15th century, in the meaning defined at transitive sense

Phrases Containing sharpen

• sharpen up

Rhymes for sharpen

• tarpon
• pilocarpine

Kids Definition

sharpen

verb

sharp·​en ˈshär-pən 

sharpened; sharpening ˈshärp-(ə-)niŋ 

1

: to make or become sharp or sharper

sharpen a pencil

a better lens sharpened the image

pain that suddenly sharpened

2

: improve

sharpen one's skills

sharpener

ˈshärp-(ə-)nər 

noun