cis: meaning, definition, pronunciation and examples
C2Formal, Academic, Sociological, Technical (LGBTQ+ contexts, gender studies, social sciences).
Quick answer
What does “cis” mean?
A prefix meaning "on this side of" or "on the same side as," often contrasted with "trans-". In contemporary usage, it is primarily used in the context of gender identity, describing a person whose gender identity corresponds with the sex they were assigned at birth.
Audio
Pronunciation
Definition
Meaning and Definition
A prefix meaning "on this side of" or "on the same side as," often contrasted with "trans-". In contemporary usage, it is primarily used in the context of gender identity, describing a person whose gender identity corresponds with the sex they were assigned at birth.
Beyond gender, it can be used as a scientific or geographical prefix (e.g., cisalpine), but this usage is rare in everyday language. The term has become central to modern discussions of identity, gender, and social norms.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or grammatical differences in usage. Both follow the same morphological pattern.
Connotations
Identical connotations in both varieties, tied to its academic and social justice origins.
Frequency
Slightly higher frequency in US media and academic discourse due to the prominence of gender identity debates, but the term is well-established and equally understood in the UK.
Grammar
How to Use “cis” in a Sentence
[cis] + noun (e.g., cis woman)[cis-] + root (e.g., cisgender)adjective + [cis] (e.g., heterosexual, cis)Vocabulary
Collocations
Examples
Examples of “cis” in a Sentence
adjective
British English
- The study compared the mental health outcomes of cis and trans adolescents.
- Cis privilege is an important concept in understanding systemic inequality.
American English
- The panel included both cis and transgender speakers.
- It's important for cis allies to listen to trans experiences.
Usage
Meaning in Context
Business
Virtually never used. Might appear in DEI (Diversity, Equity, and Inclusion) policy documents.
Academic
Common in sociology, psychology, gender studies, and queer theory texts and discussions.
Everyday
Used in informed discussions about gender, identity, and social issues, primarily within or adjacent to LGBTQ+ communities.
Technical
Used in medical, psychological, and sociological literature relating to gender identity. Also retains its original Latin meaning in some scientific fields (e.g., chemistry: cis-trans isomerism).
Vocabulary
Synonyms of “cis”
Neutral
Weak
Vocabulary
Antonyms of “cis”
Watch out
Common Mistakes When Using “cis”
- Using 'cis' as a standalone noun (e.g., 'a cis' is incorrect; use 'a cis person').
- Mispronouncing it as /kɪs/ or /saɪs/.
- Using it in contexts completely unrelated to gender identity where it causes confusion.
- Spelling it with a hyphen when used as a prefix (cisgender, not cis-gender).
FAQ
Frequently Asked Questions
No, it is a neutral, descriptive term used in academic and social contexts to describe a person whose gender identity aligns with their sex assigned at birth. It is not derogatory.
It is generally considered poor style and potentially dehumanising. The preferred usage is as an adjective ('cis people', 'cis individuals') or as a prefix ('cisgender').
It was coined in the 1990s within academic and transgender communities, derived from the Latin prefix 'cis-' meaning 'on this side of', as an antonym to 'trans-' ('across from' or 'beyond').
Yes, but they are specialised. In chemistry, it describes molecules with certain atom arrangements (cis-trans isomerism). In geography, it means 'on this side of' (e.g., Cisalpine Gaul). However, in everyday modern English, the gender-related meaning is dominant.
A prefix meaning "on this side of" or "on the same side as," often contrasted with "trans-". In contemporary usage, it is primarily used in the context of gender identity, describing a person whose gender identity corresponds with the sex they were assigned at birth.
Cis is usually formal, academic, sociological, technical (lgbtq+ contexts, gender studies, social sciences). in register.
Cis: in British English it is pronounced /sɪs/, and in American English it is pronounced /sɪs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'CIs' as in 'Comfortable In Skin' (as assigned at birth) – a mnemonic for its core meaning related to gender identity.
Conceptual Metaphor
IDENTITY IS ALIGNMENT (a cis person's gender identity is aligned with their assigned sex). OPPOSITIONAL SPACES (cis vs. trans as 'this side of' vs. 'across from').
Practice
Quiz
In which context is the prefix 'cis-' most commonly used in contemporary English?