a piece of wood, cork, or other material, often cylindrical in shape, used to stop up holes and gaps or as a wedge for taking a screw or nail

such a stopper used esp to close the waste pipe of a bath, basin, or sink while it is in use and removed to let the water drain away

a device having one or more pins to which an electric cable is attached: used to make an electrical connection when inserted into a socket

a mass of solidified magma filling the neck of an extinct volcano

a weighted artificial lure with one or more sets of hooks attached, used in spinning

a seedling with its roots encased in potting compost, grown in a tray with compartments for each individual plant

a recommendation or other favourable mention of a product, show, etc, as on television, on radio, or in newspapers

a shot, blow, or punch (esp in the phrase take a plug at)

the mechanism that releases water to flush a lavatory (esp in the phrase pull the plug)

an old horse

to stop up or secure (a hole, gap, etc) with or as if with a plug

to insert or use (something) as a plug

to make favourable and often-repeated mentions of (a song, product, show, etc), esp on television, on radio, or in newspapers

to shoot with a gun

to punch or strike

to work steadily or persistently