Definition of the mailschiefly US, law, formal
- packages sent through the mails
- He was charged with using the mails to commit fraud.
: payment, rent
: bag, wallet
: material (such as letters and packages) sent or carried in a postal system
: a conveyance that transports mail
: to send by mail : post
: armor made of metal links or sometimes plates
: a hard enclosing covering of an animal (such as a tortoise)
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