I wonder just how many words I pronounce wrong. I never watch the telly, and rarely listen to the radio. Usually, the only place I get news and information from is the internet, or books. I'd be pretty sure I know words and their meanings, and have never heard them spoken.
It took me a long time to realise Glyc was short for glycerol, and be that time I had decided it was pronounced Glyk, and can't get it out of my head now.
I always associated a carboy with Cider brewing. I thought it was an old Herefordshire term, but obviously not.
Cubie I always called cubie, as in a cubic container of oil. As for the 25 litre HPDE drums, well they have always been five gallon drums to me.