access
accessibility
apartment
arrival
authentication
authorized
card
cardkey
control
door
electronic
enter
entrance
entry
hand
holding
hotel
hotel room
identification
key
keycard
keycode
lock
magnetic
male
man
modern
motel
open
pass
plastic
privacy
protect
protection
room
room key
safety
secure
security
sensor
suite
system
technology
tourism
travel
trip
unlock
vacation
validation