Kairos is an appeal to the timeliness of the argument. Two common rhetorical devices are irony and metaphor. The use of irony in rhetoric is primarily to convey to the audience an incongruity that is often used as a tool of humor in order to deprecate or ridicule an idea or course of action.
Definition of irritant for English Language Learners. : 1  something that makes part of your body sore and painful. : 2  something that is unpleasant or annoying : something that irritates you.
Soot definition, a black, carbonaceous substance produced during incomplete combustion of coal, wood, oil, etc., rising in fine particles and adhering to the sides of the chimney or pipe conveying the smoke: also conveyed in the atmosphere to other locations. See more.