(informal) A person whose personality and behavior are characterized by worry, insecurity, and timidity.

absolutely nothing, none of something.

Alternative spelling of nervous-Nellie

One instance of an event (such as the arrival of a single bird) does not necessarily indicate a trend.

Alternative spelling of nervous-Nellie

A regular night on which a couple goes out on a date. For example, a couple may go on a date every Friday night.

(grammar) A noun that modifies another noun (thus functioning adjectivally) and that is optional (that is, it can be removed without affecting the grammar and essential meaning of the sentence); it may be a single word or a compound noun or noun phrase.

Alternative spelling of nonviolence

A nurse who takes care of a baby, but does not breastfeed

(grammar) A noun that modifies another noun attributively and that is optional (that is, it can be removed without affecting the grammar of the sentence); a noun used as an adjective.