Definition of (a) penny for your thoughts
- "A penny for your thoughts?" "Oh, I'm just thinking about what I want to do over the weekend."
: a monetary unit of the United Kingdom formerly equal to ¹/₂₄₀ pound but now equal to ¹/₁₀₀ pound
: a similar monetary unit of any of various other countries in or formerly in the Commonwealth of Nations — see pound at Money Table
: a coin representing one penny
: being a (designated) nail size
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