grouping
agglomeration
bottle collection
coin collecting
coin collection
collation
compilation
compiling
conchology
gather
gathering
numismatics
numismatology
philately
pickup
shell collecting
stamp collecting
stamp collection
tax collection
affecting
connecting
correcting
defecting
deflecting
detecting
directing
disconnecting
disrespecting
dissecting
effecting
ejecting
electing
erecting
expecting
infecting
injecting
inspecting
intersecting
neglecting
objecting
perfecting
projecting
prospecting
protecting
recollecting
reconnecting
redirecting
reelecting
reflecting
rejecting
respecting
resurrecting
selecting
subjecting
suspecting
unsuspecting