plural of mash-up

(intransitive) To put on a mask, especially a safety mask or a medical facemask.

simple past tense and past participle of mask up

present participle of mask up

A year in which a certain species or population of plants produces a very large quantity of seeds or fruit.

plural of mast year

(historical) A person employed to find crews for ships, sometimes by illicit practices such as shanghaiing.

plural of boarding-master

(LGBT) Having a gender identity or presentation that is on the masculine side; masc or butch.

(Christianity) The incident in the nativity narrative of the Gospel of Matthew (2:16–18) in which Herod the Great, king of Judea, orders the execution of all male children two years old and under in the vicinity of Bethlehem.