Crossword clues for the word: SPECULATE The word SPECULATE has appeared as an answer to at least 12 crossword clues on different crossword puzzles. Crossword clues for SPECULATE Showing 1 to 12 of 12 results Clue(s) Conjecture Form a conjecture Form a theory Form a theory (about) Guess Guess pet clause was used Invest in risky stocks and shares (9) Please cut out guess (9) Risk Rob supports old Bob in gamble Wonder if you should take a risk with your money Wonder what the bear will do?