English Reference
noun · verb

ink

n. · v.
US /ˈɪŋk/ UK /ˈɪŋk/ ink UK spelling inks

  1. 01 B1 Intermediate

    n.a colored liquid used in pens or printers for writing and drawing.

    n.a pigmented or dye-based fluid used for writing, printing, or drawing. Usually uncountable when referring to the substance.

    Simple

    The pen ran out of ink right in the middle of the exam.

    In context

    The printer requires a specific type of archival ink to ensure the photographs do not fade when exposed to direct sunlight.

  2. 02 B2 Upper Intermediate Science

    n.the dark liquid that sea animals like squid spray to hide from enemies.

    n.the dark, protective fluid ejected by cephalopods, such as squid or octopuses, to obscure the view of predators.

    Simple

    The octopus released a cloud of dark ink and escaped into the rocks.

    In context

    Marine biologists observed the cuttlefish using its ink as a decoy to confuse the approaching shark.

  3. 03 C1 Advanced SlangInformal

    n.a casual word for tattoos or the art of tattooing.

    n.a metonymic reference to tattoos or the professional work of a tattoo artist.

    Simple

    He spent the whole weekend getting some new ink on his arm.

    In context

    The gallery featured a collection of photographs documenting the intricate ink worn by sailors in the early twentieth century.

    tattoosbody art
  4. 04 B2 Upper Intermediate Informal

    v.to officially sign a contract or a deal.

    v.to formally execute or conclude a contract or agreement by signing it. Transitive use.

    Simple

    The famous player is expected to ink a new deal with the team tomorrow.

    In context

    After months of intense negotiations, the two tech giants finally inked a merger agreement that will reshape the industry.

  5. 05 C1 Advanced SlangInformal

    v.to mark someone's skin with a permanent tattoo.

    v.to apply a tattoo to a person's skin. Transitive use.

    Simple

    The artist spent five hours inking the detailed design onto her back.

    In context

    He has been inking clients at this studio for over a decade, specializing in traditional maritime designs.

Wibier said one side of the page has three examples of red ink that were added to highlight something important.

Phys.org· 25 Aug 2026

From Middle English ynke, from Old French enque, from Latin encaustum (“purple ink used by Roman emperors to sign documents”), from Ancient Greek ἔγκαυστον (énkauston, “burned-in”), from ἐν (en, “in”) + καίω (kaíō, “burn”). In this sense, displaced native Old English blæc (“ink”, literally “black”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Ancient Greek ἔγκαυστον
Level B2 · Upper Intermediate
Frequency Common
Updated