make it one's business

Undertake a self-appointed task, as in I'll make it my business to find out their plans. This phrase was first recorded in 1642.

Name	Pronounced	Usage
Shanna	SHAN-ə	English
Nonus	-	Ancient Roman (Rare)
TuÂN	-	Vietnamese
Foster (2)	FAWS-tər	English
Drorit	-	Hebrew
Sam (3)	SAM (English)	Literature