An example of synonymy is two people who have similar personalities.
In 1924 this name was reduced to synonymy.
If we adopt a conception of meaning where truth-conditional equivalence is sufficient for synonymy, we have an apparent counterexample to compositionality.
For each taxon, full synonymy can be kept, along with an unlimited number of common names in different languages.
John Lyons argues rather cleverly that despite the reservations of people like Ullman, strict synonymy is possible.
This can be used to check spelling and synonymy of orchid names.