plug

/ˈpləg/

Dutch, from Middle Dutch plugge; akin to Middle High German pfloc plug

noun

  1. a piece used to fill a hole : stopper

  2. an obtruding or obstructing mass of material resembling a stopper

  3. a flat compressed cake of tobacco

verb

  1. to stop, make tight, or secure by inserting a plug

  2. to remedy (a deficiency) as if by inserting a plug

  3. to hit with a bullet : shoot

trying to plug the gaps in their understanding

noun

  1. a feature of a computer system by which peripherals are automatically detected and configured by the operating system