Standard Lemma guide

trepan

noun · verb · 9 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /tɹɪˈpæn/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /tɹəˈpæn/
  • General-American: /tɹi-/
  • rhymes with -æn

1

noun

Meaning 1

A tool used to bore through rock when sinking shafts.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A surgical instrument used to remove a circular section of bone from the skull; a trephine.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Alternative spelling of trapan (“act of entrapping or tricking; thing which entraps or tricks; (archaic or obsolete) person (or occasionally an animal) that traps or tricks another into doing something that benefits them but harms the victim”)

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To create a large hole by making a narrow groove outlining the shape of the hole and then removing the plug of material remaining by less expensive means.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Topics: business, manufacturing, mining

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To use a trepan; to trephine.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

Alternative spelling of trapan (“to catch or entrap (a person or animal) in a snare or trap; (figurative) to trap or trick (someone), especially by using some stratagem, into doing something that benefits the perpetrator but harms the victim”)

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

a drill for cutting circular holes around a center

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: drill

8

noun

Meaning 8

a surgical instrument used to remove sections of bone from the skull

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: trephine

Antonyms: none provided

Broader terms: surgical instrument

9

verb

Meaning 9

cut a hole with a trepan, as in surgery

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: bore, drill

History

Etymology

Borrowed into Middle English from Old French trepan, from Latin trepanum, from Ancient Greek τρύπανον (trúpanon, “auger, borer”). Doublet of trephine.

See trapan.

Across languages

Translations

11 source translations are retained for this English entry.

  • French: trépan — tool to bore
  • Italian: perforatrice — tool to bore
  • Italian: trivella — tool to bore
  • Italian: trapano — tool to bore
  • Swedish: trepan — tool to bore
  • Bulgarian: пробивам (probivam) — to create a large hole
  • Spanish: trepanar — to create a large hole
  • Galician: trepanar — to use a trepan
  • German: trepanieren — to use a trepan
  • Spanish: trepanar — to use a trepan
  • Swedish: trepanera — to use a trepan