You searched for: “polyonymy”
polyonymy
1. The use of, or the practice of, using various names for one thing.
2. Each of a number of different words having essentially the same meaning; for example, Jupiter, Zeus, and Oden.
This entry is located in the following units: -onym, -onymy, -onymic, -onymically, -onymous, -onymously, -nym (page 10) poly- (page 13)