To persist in a difficult situation; to endure or persevere during challenging times.

कठिन परिस्थितियों में धैर्य बनाए रखना

English Usage: When things get tough, just hang on in there and everything will be okay.

Hindi Usage: जब चीज़ें कठिन हो जाएँ, तो बस डटे रहना और सब ठीक हो जाएगा।

To maintain a position, to not give in or retreat

स्थिति बनाए रखना, हार न मानना

English Usage: The soldiers were commanded to hold the line during the battle.

Hindi Usage: सैनिकों को युद्ध के दौरान डटे रहने का आदेश दिया गया।