Based on the hints provided, let's try to deduce the word step by step.
First Hint:
- "This word is used in common for all meanings."
This suggests that the word we're looking for is a common word that can be used in various contexts but retains a consistent meaning across those contexts.
Second Hint:
- "Shall we demonstrate great reasoning skills like a detective?"
This hint implies that the word might be related to investigation, solving, or reasoning.
Third Hint:
- "If it's difficult, I'll give you a second hint."
This doesn't directly relate to the word but indicates the structure of the game.
Fourth Hint:
- "If it's still difficult, I'll explain the meaning of the word."
Again, this is about the game's structure.
Fifth Hint:
- "The word in the OO part is the correct answer."
This suggests that the word we're looking for is represented by "OO" in the context of the game.
Sixth Hint:
- "OO is included in the meaning of all words."
This reinforces that "OO" is a word that is integral to the meanings of various other words.
Given these hints, let's consider a word that fits all these criteria. A word that is commonly used across various contexts and is often associated with reasoning or investigation is "case."
- "Case" is used in many contexts (e.g., a legal case, a medical case, a suitcase).
- It's often used in detective work (e.g., solving a case).
- It fits the structure of the game where "OO" represents the word we're looking for.
- "Case" is included in the meaning of many words (e.g., "case study," "case law," "case sensitive").
So, my guess for the answer is: case.
Can you confirm if this is correct?