Emily Dickinson Lexicon

PASS'PORT, n. [Fr. passeport; passer, to pass, and porter, to carry; It. passaporto; Sp. pasaporte.]

1. A written license from a king or other proper authority, granting permission or safe conduct for one to pass through his territories, or to pass from one country to another, or to navigate a particular sea without hinderance or molestation.
2. A license for importing or exporting contraband goods or movables without paying the usual duties.
3. That which enables one to pass with safety or certainty. His passport is his innocence and grace. – Dryden.