access
accessibility
apartment
authorised
authorize
barricade
blank bunch
burglar
car
chamber
close
door
enter
entrance
entry
exit
home
house
isolated
jail
key
keyring
keys
lock
locker
locksmith
macro
metal
metallic
open
permission
privacy
private
ring
room
sale
secure
security
shiny
silver
solution
solve
steel
success
suite
tag
teeth
thief
unlock