To make a serious and formal promise or vow
एक गंभीर और औपचारिक वादा करना
English Usage: He stood before the crowd to make a solemn promise to always serve them honestly.
Hindi Usage: उसने भीड़ के सामने गंभीर वचन देने के लिए खड़ा हुआ कि वह हमेशा ईमानदारी से उनकी सेवा करेगा।
"gambhir vachan dena", "gambheer vachan dena", "gambhir vachan denah", "gumbhir vachan dena", "gambir vachan dena", "gambeer vachan dena", "gambheer vachan denah"
