D defs.my
Entry 1 sense Webster, 1913

doorstop

· door·stop · IPA
01 n. The block or strip of wood or similar material which stops, at the right place, the shutting of a door; any object used to stop open doors …
  1. 1.
    The block or strip of wood or similar material which stops, at the right place, the shutting of a door; any object used to stop open doors from moving.(Carp.)