A trench is a long, narrow DITCH or DEPRESSION in the ground, typically used for military defense. The term 'trench' can also refer to a variety of other types of excavations, such as grooves, entrenchments, earthworks, depressions, fosses, gullies, dykes, pits, ruts, moats, ditches, furrows, slits, and fosses. ENCROACH, with 8 letters, means to gradually intrude on another's territory, rights, or privileges. GROOVE, with 6 letters, is a long, narrow cut or DEPRESSION in a surface. ENTRENCHMENT, with 12 letters, is the process of digging trenches for defensive purposes. EXCAVATION, with 10 letters, is the act of digging out or hollowing something. EARTHWORK, with 9 letters, is an embankment or fortification made of soil. DEPRESSION, with 10 letters, is a sunken area of land, typically surrounded by higher ground. FOSSE, with 5 letters, is an old French word for a DITCH or MOAT. GULLY, with 5 letters, is a deep channel cut by running water in an area of soft soil or rock. DYKE, with 4 letters, is an artificial bank or wall built to hold back water. PIT, with 3 letters, is a large hole in the ground. RUT, with 3 letters, is a GROOVE or FURROW made by a wheel or by repeated passage. MOAT, with 4 letters, is a deep, wide DITCH surrounding a building or town, typically filled with water and intended as a defense against attack. DITCH, with 5 letters, is a long, narrow trench dug in the ground, typically to carry water away from a particular area. FURROW, with 6 letters, is a long, narrow GROOVE or DEPRESSION made in the ground, especially by a plow. SLIT, with 4 letters, is a narrow opening or cut. Foss, with 4 letters, is an old English word for a DITCH or MOAT.