rapt
It depends on what you mean by 'four letter word'. Thea has four letters, so yes it is. It is not a swear word, so it's not that kind of 'four letter word'.
made is a 4 letter word. -.-" I don't mean to sound rude, but, made is a four letter word and the only four letter word with the four letter word 'MADE' in it is made.
The four letter word for stern as a noun : Rear to mean rear of a ship or aircraft.The four letter word for stern as an adjective: Hard to mean strict.
Mean.
nice
mean, avid
"four-letter word" is another phrase meaning "curse word, so the phrase might mean that boobies is not a scientific word for breasts, but it's not considered vulgar, either.
upon
base
Pelt
The mean is the average value.
Glum, blue, down