The meaning of the idiom "X marks the spot" -

• The idiom "X marks the spot" means - The exact location of something important or valuable.

• X marks the spot (idiom)
English Meaning: Refers to the specific location of something important or valuable, often used when describing a treasure map or something hidden.
Bangla Meaning: এমন একটি স্থান যেখানে কিছু গুরুত্বপূর্ণ বা মূল্যবান কিছু আছে।

Example Sentence:
- According to the map, X marks the spot where the treasure is buried.

Source:
1. Cambridge Dictionary.
2. Accessible Dictionary by Bangla Academy.