This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of copula.

"On Sellars 'view, such special copulae and metalinguistic indicators initially arise in response to the need to abstract from our domestic sign designs in order to classify items of different languages on the basis of such functional criteria."