rage
anger
ire
A four letter word starting with the letter a is able.
Wrath.
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'.
stressed i think
peterbed,lividity,furious ^peverted
The word rage (extreme or violent anger).
Yes, the word 'fury' is a noun, a word for unrestrained and violent anger, a word for a thing.
One three letter word relating to anger and ending with O is ego.
anger
Anger
ire
Exasperation.
enraged
scorn, anger
Vent could mean release anger.