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