Stonewall Cymru | Glossary of Terms
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Glossary of Terms


a (typically) straight and/or cis person who supports members of the LGBT community.


Bisexual or Bi 

refers to a person who has an emotional, romantic and/or sexual orientation towards more than one gender.



the fear or dislike of someone who identifies as bi.


Cisgender or Cis 

someone whose gender identity is the same as the sex they were assigned at birth. Non-trans is also used by some people.


Coming out 

when a person first tells someone/others about their identity as lesbian, gay, bi or trans.

Dod allan


is calling someone by their birth name after they have changed their name. This term is often associated with trans people who have changed their name as part of their transition.



refers to a man who has an emotional, romantic and/or sexual orientation towards men. Also a generic term for lesbian and gay sexuality - some women define themselves as gay rather than lesbian.



often expressed in terms of masculinity and femininity, gender is largely culturally determined and is assumed from the sex assigned at birth


Gender dysphoria 

used to describe when a person experiences discomfort or distress because there is a mismatch between their sex assigned at birth and their gender identity. This is also the clinical diagnosis for someone who doesn’t feel comfortable with the gender they were assigned at birth.

Dysfforia rhywedd

Gender expression

how a person chooses to outwardly express their gender, within the context of societal expectations of gender. A person who does not confirm to societal expectations of gender may not, however, identify as trans

Mynegiant rhywedd

Gender identity 

a person’s internal sense of their own gender, whether male, female or something else (see non-binary below), which may or may not correspond to the sex assigned at birth.

Hunaniaeth rhywedd

Gender reassignment 

another way of describing a person’s transition. To undergo gender reassignment usually means to undergo some sort of medical intervention, but it can also mean changing names, pronouns, dressing differently and living in their self-identified gender. Gender reassignment is a characteristic that is protected by the Equality Act 2010, and it is further interpreted in the Equality Act 2010 approved code of practice. It is a term of much contention and is one that Stonewall's Trans Advisory Group feels should be reviewed.

Ailbennu rhywedd

Gender Recognition Certificate (GRC) 

this enables trans people to be legally recognised in their affirmed gender and to be issued with a new birth certificate.  Not all trans people will apply for a GRC and you currently have to be over 18 to apply.  You do not need a GRC to change your gender markers at work or to legally change your gender on other documents such as your passport. 

Tystysgrif Cydnabod Rhywedd

Gender stereotypes 

the ways that we expect people to behave in society according to their gender, or what is commonly accepted as ‘normal’ for someone of that gender.

Ystrydebau rhywedd

Gender variant 

someone who does not conform to the gender roles and behaviours that society expects of them based on the gender assigned to them at birth. This is often used in relation to children or young people.

Rhywedd amrywiol

Gillick competence

a term used in medical law to decide whether a child (under 16 years of age) is able to consent to his or her own medical treatment, without the need for parental permission or knowledge.

Cymhwysedd Gillick

Heterosexual / Straight 

refers to a person who has an emotional, romantic and/or sexual orientation towards people of the opposite gender.

Heterorywiol / Syth


this might be considered a more medical term used to describe someone who has an emotional, romantic and/or sexual orientation towards someone of the same gender. The term ‘gay’ is now more generally used.



the fear or dislike of someone who identifies as lesbian or gay.



a term used to describe a person who may have the biological attributes of both sexes or whose biological attributes do not fit with societal assumptions about what constitutes male or female. Intersex people can identify as male, female or non-binary. Stonewall works with intersex groups to provide its partners and stakeholders information and evidence about areas of disadvantage experienced by intersex people but does not, afer discussions with members of the intersex community, include intersex issues as part of its current remit at this stage.



refers to a woman who has an emotional, romantic and/or sexual orientation towards women.



the acronym for lesbian, gay, bi and trans.



a concept where neurological differences are recognised and respected in the same way as any other human difference.



an umbrella term for a person who does not identify as only male or female, or who may identify as both.



when a lesbian, gay, bi or trans person’s sexual orientation or gender identity is disclosed to someone else without their consent.

Datgelu heb gydsyniad ('Owtio')


refers to a person who is not limited in sexual choice with regard to biological sex, gender or gender identity.


Person with trans history

someone who identifies as male or female or a man or a woman, but was assigned differently at birth. This is increasingly used by people to acknowledge a trans past.

Rhywun sydd â hanes traws


words we use to refer to people’s gender in conversation - for example, ‘he’ or ‘she’. Some people may prefer others to refer to them in gender neutral language and use pronouns such as they / their and ze / zir.



in the past a derogatory term for LGBT individuals. The term has now been reclaimed by LGBT young people in particular who don’t identify with traditional categories around gender identity and sexual orientation but is still viewed to be derogatory by some.



the process of exploring your own sexual orientation and/or gender identity.



assigned to a person on the basis of primary sex characteristics (genitalia) and reproductive functions. 


Sexual orientation 

a person’s emotional, romantic and/or sexual attraction to another person.

Cyfeiriadedd rhywiol


an umbrella term to describe people whose gender is not the same as, or does not sit comfortably with, the sex they were assigned at birth. Trans people may describe themselves using one or more of a wide variety of terms, including (but not limited to) Transgender, Transsexual, Gender-queer (GQ), Gender-fluid, Non-binary, Gender-variant, Cross-dresser, Genderless, Agender, Non-gender, Third gender, Two-spirit, Bi-gender, Trans man, Trans woman, Trans masculine, Trans feminine and Neutrois.


Transgender man 

a term used to describe someone who is assigned female at birth but identifies and lives as a man. This may be shortened to trans man, or FTM, an abbreviation for female-to-male.

Dyn trawsryweddol

Transgender woman 

a term used to describe someone who is assigned male at birth but identifies and lives as a woman. This may be shortened to trans woman, or MTF, an abbreviation for male-to-female.

Menyw drawsryweddol


the steps a trans person may take to live in the gender with which they identify. Each person’s transition will involve different things. For some this involves medical intervention, such as hormone therapy and surgeries, but not all trans people want or are able to have this. Transitioning also might involve things such as telling friends and family, dressing differently and changing official documents.



the fear or dislike of someone who identifies as trans, including the denial/refusal to accept their gender identity.



this was used in the past as a more medical term (similarly to homosexual) to refer to someone who transitioned to live in the ‘opposite’ gender to the one assigned at birth. This term is still used by some although many people prefer the term trans or transgender.