on

on · preposition

imported

Definitions

preposition

  1. 1.

    Physically in contact with and supported by a surface.

  2. 2.

    Located somewhere; attached to.

  3. 3.

    About; concerning.

  4. 4.

    During a particular day or date.

  5. 5.

    By means of.

  6. 6.

    Continuing; in operation or active.

  7. 7.

    Forward; further along.

  8. 8.

    Operating or functioning.

  9. 9.

    (Of an event) happening or planned.

Related words

Antonyms: off
See also: at, in, off, upon
Synonyms: atop, upon

Etymology

From Old English on, an meaning "in, on, into," from Proto-Germanic ana meaning "on," from Proto-Indo-European root an-. The word has cognates in German an and Dutch aan. One of the most common and versatile words in English.