Countable Nouns That Start with OB and End with ER

Explore 6 verified English countable nouns starting with OB and ending with ER, including Observer, Obiter, Obtainer, Obeyer, Obliger and Obtruder. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.