Alternative spelling of nonlinear

A legendary reindeer with a nose that glows red, the subject of a comic Christmas song; often added among Santa Claus's reindeer as the leading one.

(mathematics) Notation where operators appear between operands, for example a+b

An association of independent, sovereign states most of which formerly constituted the British Empire.

Not living; inanimate.

(Canada, US, music) A musical note one beat long in 4/4 time.

(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.

An attack of a psychological disorder such as depression or anxiety so severe that it prevents a person from continuing to function normally

The official song of a nation or sovereign state, generally of a patriotic nature and played at events to celebrate or honor said state.