ack

See also: ACK, ack., and ␆

English

Etymology 1

Arbitrary formation.

Noun

ack (plural acks)

1. (military, now historical) The letter A as used in signalling and other types of communications.
   • 1929, Frederic Manning, The Middle Parts of Fortune, Vintage 2014, p. 173:

     They had to begin at the beginning: learning the Morse code, flag-wagging, a succession of acks, and practice on the buzzer.

2. (data communications) acknowledgment signal

Alternative forms

• (data communications): ACK

Antonyms

• (data communications): nack, nak

Derived terms

• ack emma
• ack-ack

Interjection

ack

1. (radio communications) acknowledged

Etymology 2

Imitative.

Interjection

ack

1. Expressing distaste, alarm, or trepidation.

Anagrams

• AKC, cak

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Swedish

Pronunciation

• Audio

  (file)

Etymology 1

From Old Swedish akh, from Middle Low German ach (“an unhappy interjection”).

Interjection

ack

1. alas, oh (exclamation of sorrow, etc.)

See also

• eja

Etymology 2

Clipping of ackumulator.

Noun

ack c

1. (electronics, slang) an electric accumulator.

Declension

Declension of ack
	Singular		Plural
	Indefinite	Definite	Indefinite	Definite
Nominative	ack	acken	ackar	ackarna
Genitive	acks	ackens	ackars	ackarnas

Synonyms

• ackumulator