Subbed

To substitute for.

To work as a substitute teacher, especially in primary and secondary education.

To replace (a player) with a substitute.

"He never really made a contribution to the match, so it was no surprise when he was subbed at half time."

Less commonly, and often as sub on, to bring on (a player) as a substitute.

"He was subbed on half way through the second half, and scored within minutes."

To coat with a layer of adhering material; to planarize by means of such a coating.

To prepare (a slide) with a layer of transparent substance to support and/or fix the sample.