something used to seal a hole, often tightly enough to prevent anything escaping; a stopper
an insulated device with metal prongs that connects an electrical appliance to an electricity supply at a socket
not in technical use an electric socket
informal a publicity boost, esp one given on a television or radio programme
a small piece of tobacco taken from a compressed cake, used for chewing rather than smoking
tobacco in a large compressed cake
a small piece taken from such a cake, used for chewing rather than smoking
a mass of solidified magma that blocks the top of an extinct volcano
informal = spark plug
(also plug plant) a young plant with its roots encased in a small mass of soil or compost, ready for planting out