Word.ws English Dictionary

ac.

ac. is the abbreviation of acre.

Meaning of acre

Noun

acre (plural acres or (UK colloquial) acre)

  1. An English unit of land area (symbol: a. or ac.) originally denoting a day's ploughing for a yoke of oxen, now standardized as 4,840 square yards or 4,046.86 square metres.
    • Buried within the Mediterranean littoral are some seventy to ninety million tons of slag from ancient smelting, about a third of it concentrated in Iberia. This ceaseless industrial fueling caused the deforestation of an estimated fifty to seventy million acres of woodlands.2006, Edwin Black, chapter 2, in Internal Combustion
    1. (historical, Chester) An area of 10,240 square yards or 4 quarters.
  2. Any of various similar units of area in other systems.
  3. (informal, plural-normally) A wide expanse.
    • I like my new house—there’s acres of space!
  4. (informal, plural-normally) A large quantity.
  5. (obsolete) A field.

See all 12 meanings of acre

Questions about ac.

What is ac. the abbreviation of?
Ac. is the abbreviation of acre.

Words near ac. in the dictionary

  1. AC adapters
  2. ac etiam
  3. AC Plonk
  4. AC Plonks
  5. ac-
  6. ac.
  7. AC/DC
  8. AC45
  9. AC45's
  10. AC45s
  11. AC50

Source and license

Adapted from Wiktionary: ac. (page history and authors); acre (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “ac..” Word.ws, https://word.ws/ac.. Based on Wiktionary, CC BY-SA 4.0.