mail train

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Also see: train

Concise Oxford English Dictionary © 2008 Oxford University Press:
mail1

▶noun letters and parcels sent by post.

■ (N. Amer. & W. Indian also the mails) the postal system.

■ Computing email.

▶verb send by post.

■ Computing send email to.

– derivatives
mailable adjective.

– origin ME (in the sense ‘travelling bag’): from OFr. male ‘wallet’, of W. Gmc origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
mail2

▶noun

• 1 historical armour made of metal rings or plates joined together flexibly.

• 2 the protective shell or scales of certain animals.

▶verb (often as adj. mailed) clothe or cover with mail.

– origin ME: from OFr. maille, from L. macula ‘spot or mesh’.