It could be a abbreviation specific to a certain field, or perhaps it's a made-up word. Maybe provide some context about where you saw this term, I could try to shed some light. It could be There's a chance that https://poppymitw008790.mpeblog.com/59618881/well-now-a-tricky-one-69cuan-appears-to-be-a-common-word-in-any-general-language-i-have-come-across