lettuce

noun

1. (countable, uncountable)An edible plant, Lactuca sativa and its close relatives, having a head of green or purple leaves.
2. (uncountable)The leaves of the lettuce plant, eaten as a vegetable; as a dish often mixed with other ingredients, dressing etc.

   “I’ll have a ham sandwich with lettuce and tomato.”

3. (US, slang, uncountable)United States paper currency; dollars.

   “To steady himself he counts the money left in his wallet. Seventy-three; today was payday. Fingering so much lettuce strengthens his nerves.”

   “Twenty dollars an hour? That's a lot of lettuce!”

4. (countable, uncountable)A strong yellow-green color, like that of lettuce (also called lettuce green).
5. (slang, uncountable)Marijuana.
6. (slang, uncountable)Long, curly hair, as worn by followers of bro culture.