Toughen metal or glass 7 little words

Looking for the answer to the “toughen metal or glass” clue? You’ll find it right below as part of the 7 Little Words April 21 2026 daily puzzle answers! 7 Little Words, created by Blue Ox Family Games, is a hugely popular word game with over 10,000 levels to explore. Each puzzle includes 7 clues, 7 mystery words, and 20 letter tiles. Your task? Solve the clues and piece together the letters to reveal the answers. If you’re stuck on “toughen metal or glass”, no worries—we’ve got the solution for you below. Thanks for visiting, and see you again with the next puzzle update. Have a great day and happy solving!