The word "telephone" does not belong in this group because all the other words—puzzles, train, and checkers—are types of games or activities. A telephone is a communication device, not a game or activity.
The word LETTER does not belong, because it is the only word in this group that does not spell valid word when spelled backwards!
Penny is the answer, the rest are types of currencies.
sign
Rift
seaweed
The word that does not belong in the group is "Month." The other words—Oil, Orange, and Oriole—are all related to color or nature, while "Month" pertains to time.
train
what does this mean?!.
hoist
A word that would belong in this group is "pacify." Like the others, it conveys the idea of reducing agitation or tension, promoting a sense of peace and tranquility.
receiver
the snake because it is an ampibian