if one knows what's good for one

Fig. one had better do what is expected of one. You'd better be on time if you know what's good for you. If you know what's good for you, you'll call and apologize.

Common Names:

Name	Pronounced	Usage
Alven	['ælvən]
Nebuchadnezzar	-	Ancient Near Eastern (Anglicized), Biblical
Tiffani	TIF-ə-nee	English
Aiman	-	Kazakh
Catherina	kath-ə-REE-nə, kə-THREE-nə	English (Rare)
Rashmi	-	Indian, Hindi, Marathi, Kannada, Telugu, Tamil