The first hint to crack the puzzle "In-depth study or examination of research" is:

It is a word which contains 8 letters

The second hint to crack the puzzle "In-depth study or examination of research" is:

It starts with letter a

The third hint to crack the puzzle "In-depth study or examination of research" is:

It ends with letter s

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Click on any empty tile to reveal a letter

The answer for the puzzle "In-depth study or examination of research" is: