Standard Lemma guide

Rohypnol

name · noun · 4 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.

  • US: /ɹoʊˈhɪp.nɑl/
  • US: Recorded audio is listed in the source snapshot.
  • homophone: rohypnol
  • CMU ARPABET: R OW2 HH AY1 P N AO2 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

name

Meaning 1

Flunitrazepam, a hypnotic drug (sleeping pill), sometimes used as a date rape drug.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: flunitrazepam

Antonyms: none provided

Broader terms: benzodiazepine

2

noun

Meaning 2

Flunitrazepam, a hypnotic drug (sleeping pill), sometimes used as a date rape drug.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: roaches, roofie, rope, Rufalin

Antonyms: none provided

3

noun

Meaning 3

A tablet of flunitrazepam.

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

a depressant and tranquilizer (trade name Rohypnol) often used in the commission of sexual assault; legally available in Europe and Mexico and Colombia

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: flunitrazepan

Antonyms: none provided

Broader terms: club drug

Narrower terms: R-2, Mexican valium, rophy, rope, roofy, roach, forget me drug, circle

History

Etymology

From Ro(che) + hypno- + -ol, from the brand name F. Hoffmann-La Roche (known simply as Roche). First attested in the 1970s.

Genericized trademark of Rohypnol, a brand-name drug owned by F. Hoffmann-La Roche.