Cross-pieces are essential components in various structures and devices, acting as supports or connectors. The word refers specifically to a horizontal beam or plank placed across two vertical posts, creating a "cross" shape. Antonyms for "cross-piece" might include "vertical," "diagonal," or "angled" pieces. Vertical supports would run parallel to the ground and perpendicular to the cross-piece, providing stability to the structure. Diagonal braces might run at a 45-degree angle, helping to distribute weight and tension. Angled pieces could provide a similar function but at different angles, depending on the needs of the structure. While cross-pieces remain an essential feature in certain designs, antonyms provide alternative approaches and can be equally important.