A mark or token by which a thing may be known; a visible sign; a character; a distinctive mark or feature; a characteristic quality.

(transitive) To notice with care; to observe; to remark; to heed. / (transitive) To record in writing; to make a memorandum of. / (transitive) To denote; to designate. / (transitive) To annotate.

(uncountable, UK dialectal, Northern England, Ireland, Scotland) That which is needed or necessary; business; duty; work.

Used in the sense of no or none, to show lack of or failure to perform; or in the sense of not, to negate the meaning of the word to which it is prefixed.

prevocalic form of nona-

(of a person, creature, group, or species) Primarily active during the night. / (of an occurrence) Taking place at night, nightly.

A person or creature that is active at night. / (historical) A device for telling the time at night, rather like a sundial but read according to the stars.

An exclamation or expression of alarm, concern, or resentment about a problem or error.

(wrestling) Without restrictions on holds or what opponents may do.

a transuranic chemical element (symbol No) with an atomic number of 102.