counterbore
noun, verb
counterbore is spelled C-O-U-N-T-E-R-B-O-R-E: 11 letters. It appears about once in every 85 million words in written English, the 293,966th most frequent word form (wordfreq, 2021 data). As a noun, counterbore means “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” (English Wiktionary, September 2026). The plural of counterbore is counterbores.
How many letters and syllables are in counterbore?
| Letters | 11: C-O-U-N-T-E-R-B-O-R-E |
|---|---|
| In writing | about once in every 85 million words; the 293,966th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is counterbore?
Counterbore appears about once in every 85 million words in written English, the 293,966th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of counterbore
- counterbores plural, present, singular, he/she/it
- counterboring participle, present
- counterbored participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does counterbore mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
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.
- 2
The cutter used to cut such a recess. (Also used, at less depth, for spotfacing.)
Meronyms: flute, pilot (the land at the tip, which rides the hole as a guide), shank
verb
- 1
To create such a cylindrical recess.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Counterbore in Spanish, French, German and Portuguese
In the sense recess-machining tool:
| Language | Words |
|---|---|
| French | chambrage |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does counterbore come from?
From counter- (“against”) + bore (“hole”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).