An amount of money spent on something
खर्च
English Usage: The monthly expense for the apartment is increasing.
Hindi Usage: अपार्टमेंट का मासिक खर्च बढ़ रहा है।
To spend or use up resources, especially money
व्यय करना
English Usage: She had to expense her business trip to get reimbursed.
Hindi Usage: उसे व्यवसायिक यात्रा का व्यय करना पड़ा ताकि उसे वापस मिल सके।