—v.i. 1. to sink or bend downward by weight or pressure, esp. in the middle: The roof sags. 2. to hang down unevenly; droop: Her skirt was sagging. 3. to droop; hang loosely: His shoulders sagged. 4. to yield through weakness, lack of effort, or the like: Our spirits began to sag. 5. to decline, as in price: The stock market sagged today. 6. Naut. a. (of a hull) to droop at the center or have excessive sheer because of structural weakness. Cf. hog (def. 16).
b. to be driven to leeward; to make too much leeway.
—v.t. to cause to sag.
—n. 1. an act or instance of sagging.
2. the degree of sagging.
3. a place where anything sags; depression.
4. a moderate decline in prices.
5. Naut. a. deflection downward of a hull amidships, due to structural weakness.
b. leeway (def. 3).