mail directly sent to an individual for advertising

advertising mail.

A kind of mail (armour for the torso) made of overlapping metal plates, resembling the scales of a fish.

(neologism) The practice of posting one's house keys back to the mortgage company because of negative equity or inability to pay mortgage investments.

mail delivered by bicycle and identified by stamp and/or postal mark.

mail carried by dogsled.

Mail carried on zeppelins.

mail (usually for weight reasons in the form of a postcard) carrying the name of the sender by means of an unguided hydrogen- or helium-filled balloon.

Third-person singular simple present indicative form of mail-order

simple past tense and past participle of mail-order