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 avoid dealing with a difficult or sensitive issue directly, usually to prevent conflict or upset
noun - a rotating tray, usually placed in the center of a table, that makes it easy for people to reach food or other items
noun - speech or writing that is impossible to understand; complete nonsense
noun - someone or something that is extremely versatile and useful in many different situations