What is the plural of "box"?
Hello! It's good to hear from you, and well done for playing Scrabble. It is a great and fun way for us to continue to improve our English skills.
The plural of "box" is "boxes". Because the word ends with "x", the rule in English is that we add "es" instead of just "s". This rule can be applied to other words ending in "x" such as "foxes" or "mixes" or "taxes" and so on.
I hope that this explanation helps you, and continue to play Scrabble!