mask – n. a cover or partial cover for the face

pandemic – n. a situation in which a disease spreads very quickly and affects a large number of people over a wide area or throughout the world

disco – n. a business where people dance to recorded popular music

plague i to cause worry to someone — usually used as (be) plagued; to cause constant or repeated trouble or disease for (someone or something)

gun for (something) -- phrasal verb to try to get something in a very determined way

lockdown – n. requirements that people stay in their homes and limit activities outside the home