ach

¹ American

[ahkh] / ɑx /

interjection

German.

alas; oh.

ACh ² American

abbreviation

Biochemistry.

acetylcholine.

ACH ³ American

abbreviation

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.
Automated Clearing House Network: the national computer network for processing electronic funds transfers between financial institutions in the United States.

ach British

/ ɑːx /

interjection

Also: och. an expression of surprise, impatience, disgust, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

Ach, who cares about the tickets at this stage, let's just get across the water, eh?

From BBC

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

Her wish is to see a new Gaelic inscription on Donnie's grave in Berlin - "Faodaidh an saoghal tighinn gu crìch ach mairidh gaol is ceòl gu bràth".

From BBC

"Ach," replied the linebacker, a two-time Super Bowl winner.

From BBC

Similar protection services are offered for ACH or transactions that are debited directly from a business bank account.

From New York Times

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023