Definitions from Wiktionary ( )

▸ noun:  A covering for the head, often in the approximate form of a cone, dome or cylinder closed at its top end, and sometimes having a brim and other decoration.
▸ noun:  (figuratively) A particular role or capacity that a person might fill.
▸ noun:  (figuratively) Any receptacle from which names or numbers are pulled out in a lottery.
▸ noun:  (figuratively, by extension) The lottery or draw itself.
▸ noun:  (video games) A hat switch.
▸ noun:  (typography, nonstandard, rare) The háček symbol.
▸ noun:  (programming, informal) The caret symbol ^.
▸ noun:  (Internet slang) User rights on a website, such as the right to edit pages others cannot.
▸ noun:  (Cambridge University slang, obsolete) A student who is also the son of a nobleman (and so allowed to wear a hat instead of a mortarboard).
▸ verb:  (transitive) To place a hat on.
▸ verb:  (transitive) To appoint as cardinal.
▸ verb:  (intransitive) To shop for hats.
▸ noun:  Initialism of highest astronomical tide.
▸ noun:  (medicine, uncountable) Initialism of human African trypanosomiasis.
▸ noun:  (electronics) Initialism of hardware attached on top: a kind of expansion board for the Raspberry Pi computer

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