Diagonal

The barcode on the product packaging consisted of a series of diagonal lines that could be scanned by the register.

The racing car sped across the track, leaving behind a trail of diagonal tire marks.

The flag of Switzerland is known for its distinctive white cross on a red diagonal background.

The physical therapist recommended exercises to strengthen the diagonal muscles in the patient's back.

The chessboard is arranged in alternating light and dark diagonal squares.

The graph showed a diagonal line indicating a positive correlation between the two variables.