Hollow keyhole Synonyms

Definitions for Hollow


  • (adjective) curved inward
  • (noun) a sunken area forming a separate space
  • (noun) an area of lowland between hills or mountains

HK abbreviation

HK is an abbreviation for Hollow Keyhole
What does HK stand for?
HK stands for "Hollow Keyhole"

Definitions for Keyhole


  • (noun) the hole where a key is inserted