1. A low temperature; cold weather; a cold environment.
2. A common infection in which the mucous membrane of the nose and throat becomes inflamed, typically causing running at the nose, sneezing, and a sore throat.
3. Of or at a low or relatively low temperature, especially when compared with the human body.
4. Lacking affection or warmth of feeling; unemotional.
5. Without preparation or rehearsal.
Plural noun: Colds.
1. It was cold in the cave.
2. A freezing cold day.