nark1 Syllabification: (nark)Pronunciation: /närk/ informalDefinition of nark noun 1British a police informer. 2Australian/New Zealand an annoying person or thing. verb [with object] British annoy or exasperate:I was narked at being pushed aroundPhrases nark it! British stop that!. Origin: mid 19th century: from Romany nāk 'nose'nark in other Oxford dictionaries Definition of nark in the British & World English dictionary