adjective - working secretly, especially as a police officer trying to get information without people knowing who you really are
noun - the place where a crime happened and where the police look for clues and evidence
noun - a male reproductive cell that can join with a female egg to create a new life
noun - an animal or human in the early stages of development before birth, especially before all the main body parts are formed
noun - an organ that develops in the uterus during pregnancy to provide oxygen and nutrients to the developing baby and remove waste products from the baby's blood
adjective - not allowed or not suitable to do something or receive something, especially by law or by rules
adjective - feeling quietly sad or thoughtful, often for no clear reason
verb - to sell illegal or harmful goods such as drugs
verb - to try to sell goods by going from place to place or by talking to people in a forceful or annoying way
adjective - direct, rough, and sometimes offensive in a humorous way, especially about sex or bodily functions