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 term that can be used in various contexts but retains the same meaning across those contexts.
Second Hint:
- "Shall we demonstrate great reasoning skills like a detective?"
This implies that the word might be related to investigation, solving puzzles, or critical thinking.
Third Hint:
- "The word in the OO part is the correct answer."
- "OO is included in the meaning of all words."
This tells us that the word we're looking for is a part of other words and that this part (OO) is central to their meanings.
Given these hints, let's consider a word that fits all these criteria. A common word that could be part of other words related to investigation and reasoning is "case."
- "Case" is used in common for all meanings (e.g., a case to be solved, a case study, a case for a phone).
- It's related to detective work (e.g., solving a case).
- "Case" can be part of other words (e.g., "showcase," "encase," "casebook"), and the concept of a "case" is central to their meanings.
So, the word we're looking for is likely "case."
Can you guess the answer now?
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