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