A five letter synonym for prison warder is screw. See the chart at the related link below.
Gaol may be the word you are thinking of. Gaol has more the meaning of jail rather than prison. Jail and prison are similar but not identical things.
pokey, clink
Juvie
cons
Slang is a five letter word for jargon.
Bonny or dishy.
Zonzon (derived from "Prison"). It's a more current slang.
Either you need a word that's not English or the starting letter is wrong. There are many words for prison, but the ones with four letters is jail, brig, or the slang stir.
The word you are looking for is cuppa.It's five letters, ending in A.Cuppa is a slang word used by the British to refer to a cup of tea. For example "One fancies a jolly cuppa".
Yes, "jug" can be a slang term for jail or prison in some contexts.
"Brown" was a slang term commonly used in London to refer to the obsolete Halfpenny.
The word "Five-Oh" is the American slang/hip hop word for the Police
There was slang five minutes after the first word was invented.
nope
Can
A fin (short for "finnif") is slang for a five-dollar bill. It is derived from the Yiddish word for "five" ("finf").