countersink

C2+ Topic:The Human Body

US /ˈkaʊntɚˌsɪŋk/ UK /ˈkaʊntəsɪŋk/ See IPA manual

verb noun

Meanings

1

verb
to bevel a hole so a screw head sits flush with the surface

Countersink each screw so the panel stays perfectly smooth.

Thesaurus

Synonyms

1 verb · to bevel a hole so a screw... bevel recesschamfer

Word family

Related forms counter sink

Etymology

From 'counter-' ('against, opposite') plus 'sink'. 'Sink' is from Old English 'sincan' ('to become submerged, go down').

sincan Old English

View etymology graph ->

Topics

The Human Body

# countersink

**Type:** Word
**Level:** C2+
**Part of speech:** verb, noun
**IPA (US):** ˈkaʊntɚˌsɪŋk
**IPA (UK):** ˈkaʊntəsɪŋk

## Meanings
1. to bevel a hole so a screw head sits flush with the surface

## Examples
- Countersink each screw so the panel stays perfectly smooth.

## Synonyms
- bevel
- recess
- chamfer

## Related Forms
- counter
- sink

## Roots and Affixes
- Root: sincan

## Etymology
From 'counter-' ('against, opposite') plus 'sink'. 'Sink' is from Old English 'sincan' ('to become submerged, go down').

## AI Etymology
Countersink is from 'counter-' ('against, opposite') plus 'sink'. 'Sink' is from Old English 'sincan' ('to become submerged, go down'). The immediate etymological form is Old English sincan. The prefix counter- contributes opposition, response, or matching action, helping to explain the word's surface structure. In present use as verb and noun, it means "to bevel a hole so a screw head sits flush with the surface", keeping the historical formation close to the word's ordinary semantic work. Related words include counter and sink.

## Topics
- The Human Body

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countersink

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