An addition to something else, usually to improve or enhance it.

अधिभार

English Usage: She took vitamins as a dietary supplement.

Hindi Usage: उसने पोषण के अधिभार के रूप में विटामिन लिए।

Sharing a common border; adjacent.

सन्निहित

English Usage: The contiguous states of America share borders with each other.

Hindi Usage: अमेरिका के सन्निहित राज्यों की सीमाएं आपस में मिलती हैं।

To add something to complete or enhance.

पूरक बनाना

English Usage: They decided to supplement their income by working part-time.

Hindi Usage: उन्होंने अंशकालिक काम करके अपनी आय को पूरक बनाने का निर्णय लिया।

Touching or connected throughout in an unbroken sequence.

सतत

English Usage: The contiguous nature of his argument made it compelling.

Hindi Usage: उनकी बहस का सतत स्वभाव इसे आकर्षक बनाता है।