mystery n.

/ ˈmist(ə)rē /
ৰহস্য
/ róhósy /
Meanings
1
something that is difficult or impossible to understand or explain
ৰহস্য, ভেদ
"The mysteries of outer space."
"বৰ্হিজগতৰ ৰহস্যবোৰ ।"
2
a novel, play, or movie dealing with a puzzling crime, especially a murder
ৰহস্য উপন্যাস
"A classic mystery."
"এখন উৎকৃষ্ট ৰহস্য উপন্যাস ।"