Meaning & use
sharpen
Last updated
Meanings
verbtransitive
To make a blade, tool, or point have a fine edge or a sharp tip.
Grammar: Takes an object: sharpen the knife.
Patterns
- sharpen something
- sharpen something with something
I need to sharpen my kitchen knives; they can barely cut through a tomato.
He sharpened the pencil with a small pocket knife.
The gardener sharpened the shears before trimming the hedge.
verbtransitive
To make a skill, sense, or mental ability stronger or more effective.
Grammar: Often used with abstract nouns like skills, mind, or senses.
Patterns
- sharpen something
- sharpen your skills
- sharpen your mind
Playing chess regularly can sharpen your problem-solving skills.
The training course helped sharpen her ability to spot errors quickly.
Reading in a foreign language sharpens your understanding of grammar.
verbintransitive
To become sharper or more intense.
Grammar: No object; often used for feelings or differences that increase.
Patterns
- something sharpens
- sharpen into something
The debate sharpened as the two candidates disagreed on taxes.
Her appetite sharpened after the long walk.
The wind sharpened as evening came on.
Word forms
| third person singular | sharpens |
|---|---|
| past tense | sharpened |
| past participle | sharpened |
| -ing form | sharpening |
Common combinations
- sharpen a knife
- You should sharpen a knife before you use it on tough meat.
- sharpen your skills
- She took an online course to sharpen her skills in data analysis.
- sharpen your focus
- A short break can help sharpen your focus for the afternoon.
- sharpen a pencil
- The child asked the teacher to sharpen a pencil for him.
- sharpen the contrast
- The new policy sharpened the contrast between the two parties.
Synonyms and how they differ
- hone
- Hone is more specific to making a blade extremely sharp, often with a fine stone; sharpen is the general word for any edge or point.
- whet
- Whet is mostly used for sharpening a blade or, figuratively, increasing appetite or curiosity; it is more literary than sharpen.
- grind
- Grind means to shape or sharpen by rubbing on a rough surface, often a wheel; sharpen is the result, not the method.
Opposites
Word family
Commonly confused: sharpen or sharpen vs. sharp?
sharpen vs sharpen vs. sharp
Sharp is an adjective (a sharp knife); sharpen is the verb (to sharpen a knife).
Practice
Choose the correct sentence:
Choose one answer.
The infinitive 'to cut' expresses purpose after an action, so 'to cut' is correct. The other options use incorrect grammar: 'for cut' needs a gerund ('for cutting'), 'cutting' without a subject is unclear, and 'cut' cannot follow 'sharpened' directly.
Make it your own
Write a sentence using “sharpen”, then check it and compare it with the examples above.