Binary and Perfidiousness

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

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

Perfidiousness noun - Lack of faithfulness especially to one's husband or wife.

Binary and perfidiousness are semantically related. Sometimes you can use "Binary" instead a noun "Perfidiousness".