This article examines how gender is expressed in English across grammatical, lexical, and discourse levels. We first outline theoretical frameworks of language and gender (e.g. performativity, language ideology) and situate English in a historical perspective (Old vs. Modern English). We then analyze grammatical gender in English – noting that English lost noun-class gender by Middle English (Curzan, 2003) so today only pronouns (he/she/they) and a few affixes (e.g. -ess, -man) encode gender (Curzan, 2003). We discuss the rise of singular they and other neopronouns as contemporary responses to binary defaults (Bradley et al., 2019). Next, at the lexical level we survey gender-marked vocabulary and coinages: from traditional gendered terms (actor/actress; chairman/chairperson) to new honorifics like Mx. and identity labels (nonbinary, cisgender). We explore how prescriptive and inclusive language efforts (e.g. Cameron’s notion of verbal hygiene (Cameron, 1995)) have influenced these changes. At the discourse level, we examine how speakers negotiate gender identity in conversation and media. For instance, discourse analyses show that news outlets often reproduce gender stereotypes more than fiction (Slipachuk et al., 2024), and that conversational style and pronoun usage reflect ideological stances. Across sections we trace continuity and change: traditional norms (generic “he”, Marked/Unmarked masculine bias) versus contemporary shifts (nonbinary pronouns, gender-neutral reform). We draw on sociolinguistic theory (e.g. language ideology, performativity) to explain how linguistic forms both reflect and shape social gender concepts (Cameron, 1995). By integrating multiple levels of structure, this study highlights the complex, evolving nature of gender expression in English. Our analysis underscores that language both mirrors historical gender roles and adapts to demands for inclusivity, with implications for communication and identity in a diversifying society.