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