n. Same as force.n. A ditch; a canal; a stream or river artificially made or enlarged.n. Specifically In fortification, a hollow place, ditch, or moat, commonly full of water, lying between the scarp and the counterscarp below the rampart, and turning round a fortified place or a post that is to be defended. See cut under castle.n. In anatomy, same as fossa.n. A simplified spelling of fosse.