Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
Rugby is regular. It follows the -ies Conversion rule.
Use plural verbs: "The rugbies are ready" (not "is ready").
Yes. The plural rugbies is standard across all English variants.
The word rugby follows the standard English pluralization rule. When forming the plural, rugby becomes rugbies. This follows the -ies Conversion pattern, which is one of the most common plural rules in English.
Understanding why rugby becomes rugbies helps with spelling and pronunciation. Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
When using rugbies in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The rugbies are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.