Speakur

Word Pronunciation & Dictionary

counterbore

Word Rarity Very rare

Frequency: Zipf frequency 1.07 in modern English

Syllables
coun-ter-bore
IPA
15
Scrabble Score
11
Letters
3
Syllables
8
Unique Chars

Meaning

noun

A cylindrical recess, typically machined at the mouth of a hole to admit a screw (such as a cap screw) so that the screw sits flush with a surface.

noun

The cutter used to cut such a recess. (Also used, at less depth, for spotfacing.)

verb

To create such a cylindrical recess.

Transitive verb

Example Sentences

Etymology

Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrāder. Old French contre- Anglo-Norman countre-bor. Middle English counter- English counter- Proto-Indo-European *bʰerH-der. Proto-Germanic *burōną Proto-West Germanic *borōn Old English borian Middle English boren English bore English counterbore From counter- (“against”) + bore (“hole”).

Usage

Inflected Forms

counterbores (plural) counterbores (present, singular) counterboring (participle, present) counterbored (participle, past) counterbored (past)

Phrases

back-counterbore

Frequently Paired Words

spotface countersink drill drill bit reamer endmill

Synonyms

countersink countersink bit

Questions

What does counterbore mean?
A cylindrical recess, typically machined at the mouth of a hole to admit a screw (such as a cap screw) so that the screw sits flush with a surface.
Where does counterbore come from?
Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrāder. Old French contre- Anglo-Norman countre-bor. Middle English counter- English counter- Proto-Indo-European *bʰerH-der. Proto-Germanic *burōną Proto-West Germanic *borōn Old English borian Middle English boren English bore English counterbore From counter- (“against”) + bore (“hole”).

How to pronounce counterbore

  1. Open the pronunciation page — Open the Speakur entry for “counterbore”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “counterbore”.
  4. Repeat and practice — Say “counterbore” aloud, matching stress and vowels until it feels natural.