MAIL (6)

Mail, v. t. [imp. & p. p. Mailed (?); p. pr. & vb. n. Mailing.] To deliver into the custody of the postoffice officials, or place in a government letter box, for transmission by mail; to post; as, to mail a letter. ☞ In the United States to mail and to post are both in common use; as, to mail or post a letter. In England post is the commoner usage.