A conditional clause in legal or formal contexts, typically meaning "unless" or "if not."

"यदि नहीं" या "अन्यथा"

English Usage: "The contract is void nisi the parties sign it."

Hindi Usage: "अनुबंध अमान्य है यदि पक्ष इसे हस्ताक्षरित नहीं करते हैं।"

Used in legal or formal language to introduce a condition; translates to "unless."

"अन्यथा"

English Usage: "You will be fined nisi you pay the fee on time."

Hindi Usage: "आपको जुर्माना होगा यदि आप समय पर शुल्क का भुगतान नहीं करते हैं।"