1. noun /ˈaɪə.rən.i,ˈaɪ.rə.ni,ˈaɪ.ɚ.ni/
a) A statement that, when taken in context, may actually mean something different from, or the opposite of what is written literally; the use of words expressing something other than their literal intention, notably as a form of humor.
b) Dramatic irony: a theatrical effect in which the meaning of a situation, or some incongruity in the plot, is understood by the audience, but not by the characters in the play.
See Also: ironically
2. adjective /ˈaɪə.rən.i,ˈaɪ.rə.ni,ˈaɪ.ɚ.ni/
The food had an irony taste to it.
Wikipedia foundation.