Meaning of DOOR OPENER in English

DOOR OPENER

noun

1. : a device to open a door: as

a. : a tool used by firemen to jimmy a locked door

b. : a release mechanism attached to a door lock and activated by a pushbutton or electric eye

2. : an inexpensive gift or premium offered to a prospect by a door-to-door salesman in order to get inside the house and present his sales talk

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.