a lock that fastens automatically by a spring.
noun, Carpentry. 1. sprung molding. sprung molding noun, Carpentry. 1. a molded board, as one forming part of a cornice, placed diagonally and secured at the ends to two surfaces intersecting at a right angle.
noun, (used with a plural verb) 1. a mountain range in S Nevada extending to the California border. Highest peak, Charleston Peak. 11,919 feet (3635 meters).
- Spring onion
noun 1. an immature form of the onion (Allium cepa), widely cultivated for its tiny bulb and long green leaves which are eaten in salads, etc Also called green onion, scallion
- Spring on someone
Present or make known unexpectedly, as in They sprung the news of their engagement on the family last night. This idiom uses spring in the sense of “make a sudden move.” Mark Twain used it in Tom Sawyer (1876): “Old Mr. Jones is going to try to spring something on the people here tonight.”