Bonds firmly
Else clues• Attaches firmly
• Attaches securely
• Binds
• Binds together
• Bonds a filling
• Bonds securely
• Bonds solidly
• Bonds, in a way
• Connects solidly
• Ensures
• Establishes firmly
• Firmly unites
• Fuses
• Glue relatives
• Glues
• Glues securely
• Joins, as stones in a wall
• Locks down
• Locks in
• Pavement materials
• Solidifies
• Sticks together