ach
interjection
alas; oh.
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ach
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ACH
ACHabbreviationautomated clearing houseclearinghouse: a large computer network that transfers batches of electronic funds directly between financial institutions without the use of cash, credit cards, or paper checks, thus reducing fees and enabling faster transactions, such as for recurring bill payments, direct deposit, etc.
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ACh
ach
1 American
[ahkh ]
/ ɑx /
interjection
German.
ACH
2
American
abbreviation
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automated clearing houseclearinghouse: a large computer network that transfers batches of electronic funds directly between financial institutions without the use of cash, credit cards, or paper checks, thus reducing fees and enabling faster transactions, such as for recurring bill payments, direct deposit, etc.
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Automated Clearing House Network: the national computer network for processing electronic funds transfers between financial institutions in the United States.
ACh
3
American
abbreviation
Biochemistry.
ach
British
/ ɑːx /
interjection
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The 'Adorant', a mammoth ivory plaque discovered in Geißenklösterle Cave in the Ach Valley, shows a lion-human hybrid figure and is covered with rows of dots and notches.
From Science Daily • Feb. 25, 2026
The collection is set to launch on Tuesday, supported by a brand campaign which will include NFL figures such as Joe Montana, Nick Foles, Ryan Clark and Emmanuel Ach.
From The Wall Street Journal • Oct. 27, 2025
Novelist Ian Rankin tweeted: "Ach, and now John Renbourn has died. What a guitarist."
From BBC • Mar. 27, 2015
Ach, but I am way over-intellectualizing this junky, imperfect show.
From Slate • Dec. 27, 2013
‘Wraiths on wings! The Precious is their master. They see everything, everything. Nothing can hide from them. Curse the White Face! And they tell Him everything. He sees, He knows. Ach, gollum, gollum, gollum!’
From "The Two Towers" by J. R. R. Tolkien
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
