Standard Lemma guide

cis-

prefix · 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.

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

1

prefix

Meaning 1

On this side of.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: geography, natural-sciences

Examples

  • cis- + alpine → cisalpine (literally “on this side of the Alps”)
  • cis- + Caucasia → Ciscaucasia
  • cis- + Jordan → Cisjordan
  • cis- + Neptunian → cis-Neptunian
  • cis- + Rhenane → cisrhenane (literally “on this side of Rhine”)

Meaning relationships

Synonyms: none provided

Antonyms: trans-

2

prefix

Meaning 2

Forms names of chemical compounds in which two atoms or groups are situated on the same side of some plane of symmetry passing through the compound.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme, physical

Topics: chemistry, natural-sciences, physical-sciences

Examples

  • cis- + diazene → cis-diazene

Meaning relationships

Synonyms: none provided

Antonyms: trans-

3

prefix

Meaning 3

Not trans.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Qualifier: gender

Examples

  • cis- + gender → cisgender
  • cis- + sexual → cissexual

Meaning relationships

Synonyms: none provided

Antonyms: trans-

4

prefix

Meaning 4

Not trans.

Being, or pertaining to being, cis.

Definition source: English Wiktionary via Wiktextract

Usage: broadly, morpheme

Qualifier: gender

Examples

  • cis- + normativity → cisnormativity
  • cis- + sexism → cissexism

Meaning relationships

Synonyms: none provided

Antonyms: trans-

History

Etymology

From the Latin preposition cis (“on this side of”). The earliest known use of the prefix relating to sexuality in any language was in a German-language book on sexology published in 1914. According to the Oxford English Dictionary, the earliest use of the prefix in the context of gender in English dates from 1994.

Across languages

Translations

13 source translations are retained for this English entry.

  • Armenian: այսր- (aysr-) — on this side of
  • Bulgarian: цис- (cis-) — on this side of
  • Bulgarian: циз- (ciz-) — on this side of
  • Georgian: ამიერ- (amier-) — on this side of
  • Georgian: ცის- (cis-) — on this side of
  • German: zis- — on this side of
  • German: cis- — on this side of
  • Ido: cis- — on this side of
  • Polish: cis- — on this side of
  • Portuguese: cis- — on this side of
  • Russian: цис- (cis-) — on this side of
  • Spanish: cis- — on this side of
  • Swedish: cis- — on this side of