quid

noun10

1. •
   (UK, informal) a pound of British money

   • Seven quid for a toastie? Are you taking the mick?!
2. •
   (historical) A sovereign or guinea, that is, a certain coin or amount of money.

   • They invited him to come to-morrow, […] and bring half a quid with him. — 1870
3. •
   (Commonwealth, informal) Various national currencies typically known by the name "pound".
4. •
   (Ireland, informal) Euro.
5. •
   (informal, rare) Dollar, dollars.
6. •
   Paired with quo, in reference to the phrase quid pro quo (“this for that”): something offered in exchange for something else.

   • […]; but what is the quo for which they ought to give the quid? you say they ought to give a quid pro quo; what is the quo? […]; did not they give you a pretty handsome quid for the quo there? — 1886
7. •
   A piece of material for chewing, especially chewing tobacco.

   • Then he lay quiet for a little, and then, pulling out a stick of tobacco, begged me to cut him a quid. — 1881
8. •
   The inherent nature of something.
9. •
   (US, informal) The act of chewing such tobacco.
10. •
    (US, historical) A member of a section of the Democratic-Republican Party between 1805 and 1811, following John Randolph of Roanoke. (From tertium quid.)

verb2

1. •
   To chew tobacco.

   • Ah! the pig-tailed, quidding pirates and the pretty pranks we played — 1902
2. •
   To let food drop from the mouth whilst chewing.

noun1

1. •
   Acronym of quantitative ingredients declaration.

   • The QUID tells a customer the percentage of particular ingredients contained in a food product.