Uncountable Nouns That Start with OPE and End with S

Explore 9 verified English uncountable nouns starting with OPE and ending with S, including Openness, Openmindedness, Operatics, Openendedness, Openheartedness, Openhandedness and Operativeness. Sort these mass nouns and non-count terms for substances and concepts by word length for quantifier accuracy, academic writing, and ESL study below, or check quantifier and measurement rules in our noun grammar guide.

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Starts with OPEN6 words
openness
openmindedness
openendedness
openheartedness
openhandedness
openmouthedness
Starts with OPER3 words
operatics
operativeness
operoseness

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