Cover mouth
Meaning: This means to put something over your mouth to protect yourself from breathing in harmful substances.
Choice of Words: Cover is a verb that means to put something over something else to protect it or hide it. Mouth is a noun that refers to the opening in the face where food is taken in and words are spoken. When you put them together, 'Cover mouth' is an instruction to protect yourself by putting something over your mouth.
Alternative Expressions
Related Expressions