a person or thing that kills

someone or something that is very effective or impressive

प्रभावशाली

English Usage: That movie was a killer in the box office.

Hindi Usage: वह फिल्म बॉक्स ऑफिस पर प्रभावशाली साबित हुई।

a series of events or items of the same kind occurring in succession

a serialized story in literature or film

धारावाहिक

English Usage: The author decided to publish the story as a serial.

Hindi Usage: लेखक ने कहानी को धारावाहिक के रूप में प्रकाशित करने का निर्णय लिया।