Definition of "stash"

stash¹

/stæʃ/

noun
countable and uncountable, plural stashes
1. (countable) A collection, sometimes hidden; a reserve.
2. (countable, US, slang, informal, African-American Vernacular) A place where drugs are stored.
3. (uncountable, UK, slang) Clothing or other items branded with a particular university club or society's logo.
4. (countable, textiles) A collection of yarn or other materials not yet allocated to any particular craft project.
  Quotations
  My stash is mostly unfinished objects on the needles. I have one bag of yarn that I bought to make a coat.
  2021, Julie Cicora, Contemplative Knitting, page 131
verb
third-person singular simple present stashes, present participle stashing, simple past and past participle stashed
1. To hide or store away for later use.
  Quotations
  “Landlord,” said I, “tell him to stash his tomahawk there, or pipe, or whatever you call it; tell him to stop smoking, in short, and I will turn in with him.
  1851 November 14, Herman Melville, chapter 3, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, page 27

stash²

/stæʃ/

noun
plural stashes
1. (nonstandard, informal, slang) mustache