• an old or over-worked horse
• an upright hydrant for drawing water to use in fighting a fire
• blockage consisting of an object designed to fill a hole tightly
• an electrical device with two or three pins that is inserted in a socket to make an electrical connection
• electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
• blatant or sensational promotion
• a wad of something chewable as tobacco
• persist in working hard; "Students must Plug away at this problem"
• make a Plug for; praise the qualities or in order to sell or promote
• deliver a quick blow to; "he punched me in the stomach"
• fill or close tightly with or as if with a Plug; "Plug the hole"; "stop up the leak"

'Plug' in other languages