Word.ws English Dictionary

ach

/æt͡ʃ/

ach noun: any of several species of plants, such as smallage, wild celery, parsley. Also the alternative form of och.

Noun (1)

ach (plural aches)

  1. (obsolete) Any of several species of plants, such as smallage, wild celery, parsley.

Interjection

IPA/æx/

  1. An expression of annoyance.
    • "Ach." Auntie frowned hugely. "That is all nonsense."1958, Anthony Burgess, The Enemy in the Blanket (The Malayan Trilogy), published 1972
  2. An expression of woe or regret.

Proper noun capitalized: ACH

ACH

  1. (US, abbreviation, initialism) Initialism of Automated Clearing House, an electronic banking network often used for direct deposit and electronic bill payment.

Noun (2) capitalized: ACH

ACH (plural ACHs)

  1. (US, abbreviation, initialism) Initialism of Advanced Combat Helmet.

Also used as

ach is also the alternative form of och.

Forms of ach

pluralaches
alternative formache
pluralACHs

Origin of ach

From Middle English ache, from Old French ache, from Latin apium (“parsley”).

Words formed from ach

Questions about ach

What does ach mean?
Ach means any of several species of plants, such as smallage, wild celery, parsley.
What part of speech is ach?
Ach can be a noun, an interjection or a proper noun.
How do you pronounce ach?
Ach is pronounced /æt͡ʃ/.
What is the plural of ach?
The plural of ach is aches.

Words near ach in the dictionary

  1. Acfield
  2. ACFs
  3. acft
  4. ACG
  5. ACGC
  6. ach
  7. ach-laut
  8. ach-lauts
  9. ach-y-fi
  10. acha
  11. achaar

Source and license

Adapted from Wiktionary: ach (page history and authors); ACH (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.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-ach.wav.

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