Noun:
1: mail the bags of letters and packages that are transported by the postal service
2: mail, post, postal service, mail service the system whereby messages are transmitted via the post office; "the mail handles billions of items every day"; "he works for the United States mail service"; "in England they call mail `the post'"
3: mail a conveyance that transports the letters and packages that are conveyed by the postal system
4: mail, post any particular collection of letters or packages that is delivered; "your mail is on the table"; "is there any post for me?"; "she was opening her post"
5: chain armour, chain mail, ring armor, ring armour, ring mail, chain armor, mail (Middle Ages) flexible armor made of interlinked metal rings
Verb:
1: get off, mail send via the postal service; "I'll mail you the check tomorrow"
2: mail, send, post cause to be directed or transmitted to another place; "send me your latest results"; "I'll mail you the paper when it's written"