The act of engaging in physical or mental activity to achieve a purpose.

कार्य करना

English Usage: She has a lot of work to do before the deadline.

Hindi Usage: उसे समय सीमा से पहले बहुत सारे कार्य करने हैं.

To perform an activity involving mental or physical effort done in order to achieve a result.

काम करना

English Usage: He works from home every Tuesday.

Hindi Usage: वह हर मंगलवार घर से काम करता है.

Relating to or engaged in work, often used in context where effort is being made.

कार्यशील

English Usage: She is in a working relationship with her colleagues.

Hindi Usage: वह अपने सहयोगियों के साथ एक कार्यशील संबंध में है.