Nigh nigh意思

"Nigh nigh" is a colloquial or child-like way of saying "goodnight" or "night-night." It is a contraction of the phrase "night night" and is often used in a playful or affectionate manner, especially with children when tucking them in or saying goodnight. It is not a standard spelling, but rather a phonetic representation of the sound made when pronouncing "night night" quickly and with a child's speech patterns.