A person who is very dependable and provides support in times of trouble.

ऐसा व्यक्ति जो संकट के समय बहुत भरोसेमंद हो और सहारा दे।

English Usage: During the crisis, she proved to be a tower of strength for her family.

Hindi Usage: संकट के समय, वह अपने परिवार के लिए सहारा देने वाली सिद्ध हुई।