Binary and One-upmanship

Binary noun - A system of two stars that revolve around each other under their mutual gravitation.

One-upmanship and binary are semantically related. In some cases you can use "One-upmanship" instead a noun "Binary".

One-upmanship noun - The practice of keeping one jump ahead of a friend or competitor.

Binary and one-upmanship are semantically related. Sometimes you can use "Binary" instead a noun phrase "One-upmanship".