NW meaning in Messaging ?

No worries is an expression seen in English meaning "do not worry about that", "that's all right", "she'll be alright", "over the shoulder", "forget about it" or "sure thing". It is similar to the US English "no problem". The phrase is widely used in Australian speech and represents a feeling of friendliness, good humour, optimism and "mateship" in Australian culture. The phrase has been referred to as the national motto of Australia.

The phrase has influenced a similar phrase used in the Tok Pisin language in Papua New Guinea. No worries utilization migrated to New Zealand after origination in Australia. Its usage became more common in British English after increased usage in Australian soap operas that aired on television in the United Kingdom. Linguistics experts are uncertain how the phrase became utilized in American English; theories include use by Steve Irwin on the television program The Crocodile Hunter and usage by the United States media during the 2000 Sydney Olympics. It has also gained usage in Canadian English .