a person who has a strong desire for something, typically used in a figurative sense to indicate longing or craving.

इच्छाशक्ति या लालसा रखने वाला व्यक्ति

English Usage: "He was a thirster for knowledge, always seeking to learn more."

Hindi Usage: "वह ज्ञान का इच्छाशक्ति रखने वाला था, हमेशा अधिक सीखने की कोशिश में।"