Pair, pare and pear are homophones. I sometimes see pair used when pare or pear would be appropriate. It depends on the context, but it can be very confusing when these words are used incorrectly.

Pair

• a set of two
• a thing with two joined parts (e.g. a pair of shorts)
• to put together to form a pair

Pare

• to trim by cutting away the outer edge or layer
• to reduce something

Pear

• the edible fruit and its tree