send, post
A six letter word for undeliverable mail is nixies.
The Latin word for mail/letter is epistula or epistola
A four letter word starting with the letter a is able.
mail, post
Lard is a four letter word for grease.
That Four-Letter Word was created in 2006.
A four letter word for 'in addition to' is also.
A four letter word for Seizures is moon
Armor is a 5-letter word starting with A that means "mail," as in chain mail armor worn by medieval knights.
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'.