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

Nilsson sharpened this approach throughout the ’80s and early ’90s. —Jeremy Lybarger, Artforum, 2 June 2026

But the Iran war–now in its third month–has sharpened the incentive logic and reinforced the narrative. —Alyson Shontell, Fortune, 2 June 2026

And while a $3,000 mattress or a 22-step wind-down routine may look like the answer to your sleepless nights, the real answer is likely to be far more accessible, like keeping a consistent sleep-wake schedule and sharpening your sleep hygiene. —Sharon Brandwein, USA Today, 2 June 2026

When was your competitive edge last tested and sharpened — evaluated against your peers in today’s fiercely competitive talent war? —Jim Hebets, Forbes.com, 1 June 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