Cambridge Dictionary has added more than 6,000 new entries to its online edition over the past year, including internet-driven terms popular with Gen Z and Gen Alpha such as “skibidi,” “delulu,” and “tradwife,” the publisher announced today (18 August).

Cambridge University Press said tradwife—a portmanteau of “traditional wife”—reflects “a growing, controversial Instagram and TikTok trend that embraces traditional gender roles,” reports AFP.

The dictionary also tackled skibidi, a word spread through memes and the viral YouTube series Skibidi Toilet. It noted the term can mean “cool” or “bad,” or carry no real meaning at all, and is linked to the “brain rot” style of content consumed by Gen Alpha.

Meanwhile, delulu—short for delusional—was defined as “believing things that are not real or true, usually because you choose to.” One cited example was Australian Prime Minister Anthony Albanese’s 2025 remark in parliament calling someone “delulu with no solulu.”

“It’s not every day you get to see words like skibidi and delulu make their way into the Cambridge Dictionary,” said Colin McIntosh, Lexical Programme manager at Cambridge Dictionary. “We only add words where we think they’ll have staying power. Internet culture is changing the English language, and the effect is fascinating to capture.”

Other additions include lewk (a standout fashion look), inspo (short for inspiration), mouse jiggler (a device used to fake computer activity while working from home), and forever chemical (long-lasting man-made substances raising environmental and health concerns).