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