abstract
abstraction
allegory
backdrop
background
brainstorm
choice
complete
conception
cooperation
copy
design
detail
difficulty
element
find
fit
group
hole
imperfection
important
inspiration
jigsaw
key
lack
leadership
match
metaphor
missing
object
one
pattern
problem
puzzle
result
shape
shortcoming
sign
space
stand
strategy
success
symbol
symbolic
team
teamwork
together
toy
view
without