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
Viorica	-	Romanian
Muhammad	mu-HAHM-mahd (Arabic)	Arabic, Urdu, Punjabi, Pashto, Bengali, Tajik, Indonesian, Malay
Baldry	['bɔ:ldri]
Seo-Hyun	su-hyun	Korean
Preethi	-	Indian, Kannada, Tamil
Bertina	bər-TEEN-ə	English