mask - n. a covering for your face or for part of your face

cardboard - n. a stiff and thick kind of paper that is used especially for making boxes

resident - n. someone who lives in a particular place

evacuation - n. the act of removing (someone) from a dangerous place

pocket - n. a usually small cloth bag that is sewn into a piece of clothing, a larger bag, etc., and that is open at the top or side so that you can put things into it

by the skin of one's teeth - idiomatic phrase. to barely c at doing something.