Lambretta,
"uNavu" is a very easy word for me.

One day, I wanted to say in Tamil that I like Tamil food, and when I try to say it, a dead and I mean "DEAD" silence fell in the room. I think by mistake I said , "naan thamizh saapidu virumbum". Big oops that day. Since then, I use "uNavu/uNavai" to mean food.