Co-ordinate and Tributary

Co-ordinate noun - A number that identifies a position relative to an axis.

Tributary and co-ordinate are semantically related. in indirect topic. In some cases you can use "Tributary" instead an adjective phrase "Co-ordinate".

Tributary adjective - (of a stream) flowing into a larger stream.

Co-ordinate and tributary are semantically related. Sometimes you can replace phrase "Co-ordinate" with "Tributary", this terms are similar.