A pair of things are two things of the same size and shape that are used together or are both part of something, for example shoes, earrings, or parts of the body.

Some objects that have two main parts of the same size and shape are referred to as a pair, for example a pair of trousers or a pair of scissors .

You can refer to two people as a pair when they are standing or walking together or when they have some kind of relationship with each other.

If one thing is paired with another, it is put with it or considered with it.

If you say that someone is or has a safe pair of hands, you mean that they are reliable and will not make any serious mistakes.