A person who fights fires, typically a professional firefighter.

A firefighter as a general term, not necessarily a professional.

अग्निशामक (सामान्य शब्द)

English Usage: The brave fireman helped extinguish the flames before they spread further.

Hindi Usage: बहादुर अग्निशामक ने लपटों को बुझाने में मदद की इससे पहले कि वे और फैल सकें।

To dismiss someone from their job.

To ignite or set something on fire.

जलाना

English Usage: Please do not fire the fireworks so close to the building.

Hindi Usage: कृपया इमारत के इतने करीब पटाखे मत जलाओ।