Mr. Johnson will be 'subbing' [=working as a substitute teacher] at the high school.
('US') We had a 'sub' [='substitute teacher'] in English class all week.
Jones 'was subbed' (by Smith) at halftime.
(..) years ago. Travels at knots. Has a range of miles. Where did you get that thing? The last sub I was on was decommissioned. Lot of hardware. It's better here than in a scrap heap. Does it work? It'll blow a hole clear through (..)2002 Shark Attack 3: Megalodon
(..) Take it easy, guys. Okay? - Adi's. - Adi's, amigos. You'll actually let him drive the sub? Kid's got damn good instincts. Make a hell of a submariner someday. Only if he listens (..)2002 Shark Attack 3: Megalodon