Resources

Glossary of Terms

Clear, respectful definitions of terminology related to gender identity and transition. No jargon — just plain English.

Jump to: Intro · General terms · Service-specific · Usage notes · Further learning · Suggest a term

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Glossary / definitions illustration
Introduction

Understanding terminology

Language around gender identity continues to evolve. This glossary provides straightforward definitions of common terms you may encounter.

A few notes

  • Terminology varies by region and community
  • Language is personal; people may use different terms for themselves
  • Definitions here reflect common usage but are not prescriptive
  • When in doubt, respect how people describe themselves

Last updated: February 2025

Quick tools

Alphabet:

A B C D E G H I L M N O P Q S T X
Section 2

General terms

Alphabetical definitions you’ll commonly encounter.

Definitions are shown in a simple accordion to keep the page scannable. Click a term to expand.

A

AFAB / AMAB
Agender
Ally
Androgynous
Assigned Gender

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B

Binary
Binding
Bisexual

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C

Cisgender
Coming Out

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D

Deadname / Deadnaming
Deed Poll

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E

Equality Act 2010

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G

Gender
Gender-Affirming Care
Gender Dysphoria
Gender Expression
Gender Identity
Gender Marker
Gender-Neutral
Gender Non-Conforming
Gender Recognition Certificate (GRC)
Gender Recognition Certificate (our service)
Genderfluid
Genderqueer

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H

Hormone Replacement Therapy (HRT)

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I

Intersex

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L

LGBTQ+
Legal Gender Recognition

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M

Misgender / Misgendering
MTF / FTM

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N

Non-Binary

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O

Out / Outed

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P

Passing
Pronouns

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Q

Queer
Questioning

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S

Self-Identification / Self-ID
Sex
Sex Assigned at Birth
Social Transition
Stealth

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T

Trans / Transgender
Trans Man
Trans Woman
Transition
Transphobia

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X

“X” Gender Marker

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Section 3

Service-specific terms

Definitions related to our certificate service and registry.

Certificate Holder
Digital Registry
Reference Number
Self-Declaration
Section 4

Usage notes

How to use this glossary respectfully and safely.

Respect individual preferences

People may use different terms to describe themselves. Always respect how someone identifies and the language they use.

Language evolves

Gender terminology continues to develop. What’s common today may change tomorrow. Stay open to learning.

Ask when unsure

If you’re unsure what term to use for someone, it’s okay to politely ask. “What pronouns do you use?” is a respectful question.

Avoid assumptions

Don’t assume someone’s gender identity, pronouns, or terminology preferences based on appearance.

Section 5

Further learning

Helpful next steps if you want to go deeper.

Support organisations

Many organisations listed on our Support Organisations page provide educational resources about gender identity and terminology.

Support organisations

Regional resources

Visit our Regions pages for country-specific information about gender recognition law and local terminology.

Explore regions

Official resources

Government equality bodies often publish guidance on inclusive language and understanding gender identity:

  • UK: Equality and Human Rights Commission
  • Ireland: Irish Human Rights and Equality Commission
  • US: National Center for Transgender Equality
  • Canada: Canadian Human Rights Commission

(We link to official sources on relevant pages where possible.)

Section 6

Suggest an addition

If you believe we should include a term not listed here, please let us know.

Email us

Contact: hello@genderrecognition.org

Include:

  • The term
  • A clear, concise definition
  • Why it’s important to include

We review all suggestions.

Suggestions / continuous improvement illustration

Disclaimer

This glossary provides general definitions for informational purposes. Terminology use varies by individual, community, and region. These definitions are not prescriptive.

When referring to specific individuals, always use the language and terms they use for themselves.

Need practical next steps?

If you’re looking for how our documentation works (and what it can’t do), start here: