An activity involving mental or physical effort done in order to achieve a result

The task or duty assigned to someone

किसी को सौंपा गया कार्य

English Usage: My work for today includes preparing the presentation.

Hindi Usage: आज का मेरा काम प्रस्तुति तैयार करना है।

To perform duties or tasks

To function or operate

कार्य करना या संचालन करना

English Usage: The machine will not work without power.

Hindi Usage: मशीन बिजली के बिना काम नहीं करेगी।