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