if not

if that is not [the case]; if that is not so. If not cleaned, the clock will stop running. He should be here at noon. If not, we will eat without him.

Common Names:

Name	Pronounced	Usage
Motya	-	Russian
Ishvi	-	Biblical
Lucius	LOO:-ki-uws (Ancient Roman), LOO-shəs (English), LOO-see-əs (English)	Ancient Roman, Biblical, English
Sydney	SID-nee	English
Pio	-	Italian, Portuguese
Kassiopeia	-	Greek Mythology