Synonymity
The Century Dictionary and Cyclopedia
noun.
The state of being synonymous; synonymy.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
The state of being a
synonym
.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the semantic relation that holds between two words that can (in a given context) express the same meaning
Word Usage
"Other alternatives listed have limited synonymity."
Hypernym
Words that are more generic or abstract
semantic relation