Related Clues:

• Precisely
• Exactly
• Carpenter's gadget
• Fathom
• Downright
• Get to the bottom of
• Weight that sounds like a fruit
• Perpendicular
• Depth checker
• Vertical
• Perfectly vertical
• Verticality indicator
• With 111 Down, crazy as a loon, in the Crazy A Saloon
• Water-depth measurer
• Vertical determinant