A yak is a big animal with horns and hooves that's native to Central Asia. A secondary, informal meaning of yak is "to chatter on and on." If you live in the Himalayas, you may spend a lot of time yakking about yaks.

Yaks are relatives of cows and oxen, and in many parts of Tibet it's common to drink yak milk, eat yak meat, ride on yaks, and even race yaks. The English word comes from the Tibetan g-yag, "male yak." Yak can also mean "noisy chatter" or, as verb, "to chatter noisily and at length." This meaning is a variant of the verb yack or yuck and is unrelated to the word that denotes the animal.

Definitions of yak
  1. noun
    large long-haired wild ox of Tibet (often domesticated)
    synonyms: Bos grunniens
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    type of:
    ox, wild ox
    any of various wild bovines especially of the genera Bos or closely related Bibos
  2. noun
    noisy talk
    synonyms: cackle, chatter, yack, yakety-yak
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    blether, chin music, idle talk, prate, prattle
    idle or foolish and irrelevant talk
    type of:
    talk, talking
    an exchange of ideas via conversation
  3. verb
    talk profusely
    “she was yakking away about her grandchildren”
    synonyms: gab
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    type of:
    communicate, intercommunicate
    transmit thoughts or feelings
Word Family

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