(slang, childish) An interjection generally used when gloating about a perceived cause of humiliation or inferiority for the person being addressed, often when disagreeing with a statement considered incorrect or irrelevant.

(pharmacology) a monoclonal antibody that targets the nervous system

(computing) Initialism of named-entity recognition.

(slang, sometimes derogatory) A person who is intellectual but generally introverted. / (informal, sometimes derogatory) One who has an intense, obsessive interest in something.

A bundle of neurons with their connective tissue sheaths, blood vessels and lymphatics. / (nonstandard, colloquial) A neuron. / (botany) A vein in a leaf; a grain in wood.

(transitive) To give courage. / (transitive) To give strength; to supply energy or vigour.

(Greek mythology) One of 50 sea nymphs who were attendants upon Poseidon (Neptune), and were represented as riding on sea horses, sometimes in human form and sometimes with the tail of a fish.

(theater, idiomatic, England) A production which receives generally favorable notice, but is not assured of success.

(obsolete) Full of sinews. / (obsolete) Having strong or prominent sinews; sinewy, muscular. / (obsolete) Of a piece of writing, literary style etc.: forceful, powerful.

(simile) Very nervous.