screwcap

Noun

screw cap (plural screw caps)

1. The cap of a container, especially a bottle or jar, which screws onto the threaded lip of the container.
   • Four-year-old Anna surprised her parents when she unscrewed the screw cap and poured herself a glass of milk, like an old pro.

   Synonyms:

   screw top

2. (metonymically) The style of closure that has such a cap; a container that has such a cap.
   • Corks remain prevalent, but nowadays the wine industry also offers plenty of screw caps, too, for occasions that warrant them or customers who prefer them.

   Synonyms:

   screw top