A friendly reference for new English

What does it mean? New words and slang, explained with sources

Slang, acronyms and old words with new uses, in plain English: where each one turns up, how it is used, and what the explanation rests on.

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  • Word

    interstitial

    Interstitial means relating to a gap or interval between things; in medicine it often refers to spaces between cells or tissues, and as a noun it can mean a full-screen ad shown while a page loads.

  • Word

    Möbius strip

    A Möbius strip (also spelled Mobius or Moebius) is a one-sided geometric surface made by giving a rectangular strip a half-twist and joining the ends.

  • Word

    Fogerty

    Fogerty is an Irish surname, a spelling variant of Fogarty, from Ó Fógartaigh—“descendant of Fógartach.”

  • Word

    vaporetto

    A vaporetto is a public motorboat that works like a city bus on the canals of Venice, Italy.

  • Slang

    vibe coding

    Vibe coding is writing software by telling an AI what you want in everyday language and letting it generate the code, often without carefully reading or understanding every line it produces.

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  • Slang1 entry

    Informal expressions used in conversations, online communities, and everyday life. Meaning can change with context and tone.

  • Words4 entries

    Words worth understanding, with plain-English definitions, original examples, and sources for further reading.

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How an entry works

  1. The short answer first

    Every entry opens with a plain definition you can read in one breath.

  2. How it is really used

    Where the word turns up, the tone it carries, and examples written to show typical use.

  3. Sources you can check

    Numbered references beside each meaning, so you can see what the explanation rests on.