to be important or significant

to concern or to be of interest

चिंता करना

English Usage: It doesn't matter to me where we go for dinner.

Hindi Usage: मुझे इस बारे में चिंता नहीं है कि हम रात के खाने के लिए कहाँ जाएँगे।

the substance or material of which something is made

a situation or subject under consideration

मामला

English Usage: This is a serious matter that needs to be addressed.

Hindi Usage: यह एक गंभीर मामला है जिस पर ध्यान देने की आवश्यकता है।