(UK) Initialism of National Institute for Health and Care Excellence.

(nonstandard) Overly nice interaction, often as a way to make up for past slights or curry favor for the future.

Pleasant, satisfactory. / Of a person: friendly, attractive. / Respectable; virtuous. / (with and) Shows that the given adjective is desirable, or acts as a mild intensifier; pleasantly, quite.

(colloquial) Nicely.

Used to signify a job well done. / Used to signify approval.

niceness.

(transitive, computing, Unix) To run a process with a specified (usually lower) priority.

A coastal city, the capital of the Alpes-Maritimes department, in the Provence-Alpes-Côte d'Azur region in southeast France. / A surname. (pronounced /ni:s/ or /naɪs/)

(obsolete) Fastidiously; carefully. / Precisely; with fine discernment or judgement. / Pleasantly; satisfactorily.

(obsolete) Silliness; folly. / Effeminacy; indulgence in soft living or luxuriousness. / (obsolete) Shyness; reserve. / Fastidiousness; fine sensitivity.