What's the plural form of tendergroin? Here's the word you're looking for.
Answer
The noun tendergroin can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be tendergroin.
However, in more specific contexts, the plural form can also be tendergroins e.g. in reference to various types of tendergroins
or a collection of tendergroins.