(US) Acronym of National Oceanic and Atmospheric Administration.

An airspace in which aircraft, especially military aircraft, are forbidden to fly.

(US, law) A plea in a criminal case which means that the defendant admits no guilt but is no longer contesting the charges brought against him/her.

(boxing); (informal)

(idiomatic) A negative outcome; no success; a failure.

(idiomatic) An unacceptable alternative. / (idiomatic) An unfavorable result. / (informal) Used to express a negative outcome or decision

In subjective matters of taste, people have wildly different opinions; disagreements about matters of taste cannot be objectively resolved.

(religion) A figure in Abrahamic religions, believed to have built an ark to save his family and members of each species of animal from the Great Flood. / A male given name from Hebrew. / A surname.

(rare) A female given name.

(Australia, rhyming slang) Clipping of Noah's ark; shark.