ack is a valid English word

Scrabble validity: invalid ( international - Sowpods, US - Twl06 )
iScramble validity: invalid
QuickWords validity: invalid

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Meanings

Noun (COUNTABLE)

Singular Plural
ack acks
    (military now historical) The letter A as used in signalling and other types of communications. (data communications) acknowledgment signal

Verb

Verb Present simple 3sg Present participle Past simple Past participle
ack acks acking acked acked
    Alternative form of ACK..

Interjection

    (radio communications) acknowledged Expressing distaste, alarm, or trepidation.

ack is not a Scrabble valid word


ack is not an iScramble valid word


ack is not an QuickWords valid word


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