Definition of: sag

(sag) v. sagged, sag·ging v.i.
1. To bend or sink downward from weight or pressure, especially in the middle.
2. To hang unevenly.
3. To lose firmness or determination; weaken, as from exhaustion, age, etc.
4. To decline, as in price or value.
5. Naut. To drift.
—v.t.
6. To cause to sag.
—noun
1. A sagging, or its extent or degree; a sagging place or part, as of a roof.
2. Naut. A sidewise drift, as of a vessel.
3. A depressed or sunken place in flat land; a marsh. [ME saggen,? <MDU. zakken subside,? <dial. ON (nautical) sakka plummet]