2. (v. t.) To plunge or sink into a swamp.
3. (v. t.) To cause (a boat) to become filled with water; to capsize or sink by whelming with water.
4. (v. t.) Fig.: To plunge into difficulties and perils; to overwhelm; to ruin; to wreck.
5. (v. i.) To sink or stick in a swamp; figuratively, to become involved in insuperable difficulties.
6. (v. i.) To become filled with water, as a boat; to founder; to capsize or sink; figuratively, to be ruined; to be wrecked.