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penny

penny /ˈpɛni/ noun
plural US pennies /ˈpɛniz/ or British pence /ˈpɛns/
penny
/ˈpɛni/
noun
plural US pennies /ˈpɛniz/ or British pence /ˈpɛns/
Britannica Dictionary definition of PENNY
[count]
plural pennies : a coin or a unit of money equal to ¹/₁₀₀ of a dollar : cent
plural pence : a coin or a unit of money equal to ¹/₁₀₀ of a British pound abbreviation p
plural pence : a British coin used before 1971 that was equal to ¹/₁₂ of a shilling abbreviation p
: a small amount of money
: the least amount of money

(a) penny for your thoughts

used to ask what someone is thinking about

a penny saved

◊ The saying a penny saved (is a penny earned) means that it is important to save your money.

a pretty penny

: a large amount of money

in for a penny, in for a pound

British
used to say that you should finish what you have started to do even though it may be difficult or expensive

not a penny less/more

: no less or no more than a certain amount of money

pinch pennies

see 1pinch

ten a penny

see ten

the penny drops

British, informal
used to say that someone finally understands something after not understanding it for a time