This noun follows the standard English plural rule: simply add -s to the singular form.
Diadem is regular. It follows the Standard -s rule.
Use plural verbs: "The diadems are ready" (not "is ready").
Yes. The plural diadems is standard across all English variants.
The word diadem follows the standard English pluralization rule. When forming the plural, diadem becomes diadems. This follows the Standard -s pattern, which is one of the most common plural rules in English.
Understanding why diadem becomes diadems helps with spelling and pronunciation. This noun follows the standard English plural rule: simply add -s to the singular form.
When using diadems in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The diadems are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.