The first hint to crack the puzzle "Hard, concrete, watertight e.g. __ evidence" is:

It is a word which contains 9 letters

The second hint to crack the puzzle "Hard, concrete, watertight e.g. __ evidence" is:

It starts with letter r

The third hint to crack the puzzle "Hard, concrete, watertight e.g. __ evidence" is:

It ends with letter d

Looking for extra hints for the puzzle "Hard, concrete, watertight e.g. __ evidence"

Click on any empty tile to reveal a letter

The answer for the puzzle "Hard, concrete, watertight e.g. __ evidence" is: