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