Answer:
Bat: The word bat could mean the animal or the object used in the sport baseball.
Fan: Fan could mean the electronic object used to cool down or a supporter who cheers someone/something on.
Watch: A watch can be the device wore on the wrist used to tell the time and it could mean the verb which is to look at over a period of time.
The list continues, just think of other meanings and definitions the words might have.