Meaning of PLUG in English

PLUG

noun a worthless horse.

2. plug ·noun a high, tapering silk hat.

3. plug ·noun a flat oblong cake of pressed tobacco.

4. plug ·vt to stop with a plug; to make tight by stopping a hole.

5. plug ·noun a block of wood let into a wall, to afford a hold for nails.

6. plug ·noun any piece of wood, metal, or other substance used to stop or fill a hole; a stopple.

Webster English vocab.      Английский словарь Webster.