Standard Lemma guide

non-op

adj · noun · 6 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.

  • /nɒnˈɒp/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

adj

Meaning 1

Nonoperational; not functioning.

Definition source: English Wiktionary via Wiktextract

Usage: informal, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Nonoperative; not using or requiring surgical treatment.

Definition source: English Wiktionary via Wiktextract

Usage: informal, not-comparable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Having chosen not to undergo sex reassignment surgery.

Definition source: English Wiktionary via Wiktextract

Usage: informal, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: no-op

Antonyms: none provided

4

adj

Meaning 4

Nonoperating; not directly involved in the mechanical operation of trains.

Definition source: English Wiktionary via Wiktextract

Usage: informal, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A transsexual or transgender person who has chosen not to undergo sex reassignment surgery.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: no-op

Antonyms: none provided

6

noun

Meaning 6

A nonoperator; a rail worker not directly involved in the mechanical operation of trains.

Definition source: English Wiktionary via Wiktextract

Usage: informal

Topics: rail-transport, railways, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From non- + op (“an operation; an operator; operational; operative; operating”).

Across languages

Translations

1 source translations are retained for this English entry.

  • French: non-op — Translations