even
calm
iron
You iron to smooth fabric.
smooth
even
Flat, even.
Echo
A four letter word starting with the letter a is able.
level
A four letter word for 'in addition to' is also.
Lard is a four letter word for grease.
A four letter word for Seizures is moon
That Four-Letter Word was created in 2006.
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'.