[syn: recommendation, passport]
The Collaborative International Dictionary of English v.0.48:
Passport \Pass"port\, n. [F. passeport, orig., a permission to
leave a port or to sail into it; passer to pass + port a
port, harbor. See Pass, and Port a harbor.]
1. Permission to pass; a document given by the competent
officer of a state, permitting the person therein named to
pass or travel from place to place, without molestation,
by land or by water.
Caution in granting passports to Ireland.
2. A document carried by neutral merchant vessels in time of
war, to certify their nationality and protect them from
belligerents; a sea letter.
3. A license granted in time of war for the removal of
persons and effects from a hostile country; a
4. Figuratively: Anything which secures advancement and
general acceptance. --Sir P. Sidney.
His passport is his innocence and grace. --Dryden.