SUBS

noun

1. A submarine.
2. A submarine sandwich: a sandwich made on a long bun.
3. A substitute, often in sports.

verb

1. To substitute for.
2. To work as a substitute teacher, especially in primary and secondary education.
3. To replace (a player) with a substitute.

verb

1. To coat with a layer of adhering material; to planarize by means of such a coating.
2. To prepare (a slide) with a layer of transparent substance to support and/or fix the sample.