The definition of a hat is a covering for the head, or someone's role in a job or in life.(noun)
See hat in Webster's New World College Dictionary
Origin: ME < OE hætt, akin to OFris hat, Ger hut < IE base *kadh-, to cover, protect > hood, heed, L cassis, helmet
See hat in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old English hǽt, hǽtt.
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