Someone who treats people according to their rank, status or importance.

(idiomatic) First; foremost; best, often used after its headword.

The most important person, the one who is in charge. / Someone who is top of a ranking, who is ranked first. / Oneself, being considered foremost, as by an egoist.

(idiomatic) To be aware or conscious; to look closely or carefully; to use caution. Often used in the imperative.

Used to warn someone of an imminent danger.

(nautical, historical) An official commission from a government authorizing someone to seize the property or people of another nation; especially to attack merchant shipping of another nation.

(idiomatic) To make an extra effort, so as to help or hinder.

(Internet) Acronym of Computational Infrastructure for Operations Research.

(conjunctive, idiomatic) Stated or interpreted another way; Used to introduce an explanation, simplification, or clarification.

(idiomatic) To become serious, organized, worthwhile, etc.