What Are Homophones?

Homophones are words that have exactly the same sound (pronunciation) but different meanings and (usually) spelling.

For example, the following two words have the same sound, but different meanings and spelling:

hour
our

In the next example, the two words have the same sound and spelling, but different meanings:

bear (the animal)
bear (to carry)

Usually homophones are in groups of two (our, hour), but very occasionally they can be in groups of three (to, too, two) or even four. If we take our "bear" example, we can add another word to the group"

bare (naked)
bear (the animal)
bear (to tolerate)

"Our bear cannot bear to be bare at any hour."