hat

[ hat ]
/ hæt /

noun

a shaped covering for the head, usually with a crown and brim, especially for wear outdoors.
Roman Catholic Church.
  1. the distinctive head covering of a cardinal.
  2. the office or dignity of a cardinal.Compare red hat.

verb (used with object), hat·ted, hat·ting.

to provide with a hat; put a hat on.

Nearby words

  1. hastings, battle of,
  2. hastings, thomas,
  3. hastings, warren,
  4. hasty,
  5. hasty pudding,
  6. hat dance,
  7. hat in hand,
  8. hat in the ring,
  9. hat stand,
  10. hat tree

Idioms

Origin of hat

before 900; Middle English; Old English hætt; cognate with Old Norse hǫttr hood; akin to hood1

Related formshat·less, adjectivehat·less·ness, nounhat·like, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for under one's hat

hat

/ (hæt) /

noun

verb hats, hatting or hatted

(tr) to supply (a person, etc) with a hat or put a hat on (someone)
Derived Formshatless, adjectivehatlike, adjective

Word Origin for hat

Old English hætt; related to Old Norse höttr cap, Latin cassis helmet; see hood 1

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for under one's hat

hat

n.

Old English hæt "hat, head covering," from Proto-Germanic *hattuz "hood, cowl" (cf. Frisian hat, Old Norse hattr), from PIE root *kadh- "cover, protect" (cf. Lithuanian kudas "tuft or crest of a bird," Latin cassis "helmet"). Now, "head covering with a more or less horizontal brim." To throw one's hat in the ring was originally (1847) to take up a challenge in prize-fighting. To eat one's hat is said to have been originally To eat Old Rowley's [Charles II's] hat.

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with under one's hat

under one's hat

see keep under one's hat.

hat

In addition to the idioms beginning with hat

  • hate someone's guts
  • hat in hand
  • hat in the ring
  • hats off to
  • hat trick

also see:

  • at the drop of a hat
  • brass hat
  • eat one's hat
  • hang on to your hat
  • hang up (one's hat)
  • hard hat
  • hats off to
  • keep under one's hat
  • knock into a cocked hat
  • pass the hat
  • pull out of a hat
  • take one's hat off to
  • talk through one's hat
  • throw one's hat in the ring
  • wear another hat

Also see undercap.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.