adjective

 

temperature having a low temperature

cold water/weather

 

unfriendly unfriendly or showing no emotion

a cold stare/voice

 

food served cold

cold roast beef

 

noun

 

a common illness which makes you sneeze and makes your nose produce liquid

I've got a cold.

 

adverb

 

to be unconscious

I hit my head and was out cold for two minutes.

 

completely and immediately