Do you know the meaning of ack?
The letter A as used in signalling and other types of communications.
Word in 3 letters.
This definition of the word ack is from the Wiktionary, where you can also find the etimology, other senses, synonyms, antonyms and examples.
The word ack has 2 anagrams.
The word ack spelled backward is kca which is not a word.
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