(countable) A place (building, office, shop, or counter) concerned with the business of delivering letters, post or mail and selling stamps, etc. / (countable) An organisation that delivers letters.

A voting system where the candidate with the most votes (a plurality) wins, without any form of preference transfer.

A poll taken of a sample of voters as they leave a voting station, used to predict the outcome of an election.

Dated form of postcard.

something suggestive of general welfare or prosperity

(intransitive, slang) To do something correctly.

in full control of one's faculties, and having a firm belief in one's abilities; confident, assured and poised

(idiomatic) right now, or in the near and foreseeable future

(physics) The ratio of the power produced by an object to its mass.

(countable) A painting or other picture of a person, especially the head and shoulders. / (countable, figuratively) An accurate depiction of a person, a mood, etc.