architecture
balance
block
brick
building
business
caution
challenge
concept
construction
credit
cube
danger
development
domino
economy
education
effect
fall
fear
finance
fragile
gambling
game
hand
hazard
investment
jenga
learn
make
metaphor
object
people
planning
play
project
puzzle
risk
skill
stack
strategy
structure
success
together
tower
toy
wood
wooden