airport
box
cabinets
class
classroom
coin
college
credit card
door
education
gym
hall
hallway
high
high school
home
key
keyhole
lock
locker
locker room
metal
museum
number
orange
padlock
pool
program
room
rubber
safe
safety
scholarship
school
security
sport
station
steel
storage
swimming
teammate
theft
track
train
unlock
win