to die

मरना

English Usage: She will decease if she doesn't get the medicine.

Hindi Usage: अगर उसे दवा नहीं मिली तो वह मर जाएगी।

the death of a person

व्यक्ति की मृत्यु

English Usage: His decease was mourned by the entire community.

Hindi Usage: उनकी मृत्यु पर सम्पूर्ण समुदाय ने शोक मनाया।