Countable Nouns That Start with CO and End with EX

Explore 5 verified English countable nouns starting with CO and ending with EX, including Complex, Cortex, Convex, Codex and Contraplex. 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.

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Starts with COD
1 words
codex
Starts with COM
1 words
complex
Starts with CON
2 words
convex
contraplex
Starts with COR
1 words
cortex

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