Trench - meaning and definition. What is Trench
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What (who) is Trench - definition

EXCAVATED CHANNEL IN GROUND
Trench method; Trenches; Defensive trenches; Trench (military)
  • Archaeological trench on an English farm site
  • Depiction of the [[topography]] of the [[Puerto Rico Trench]], the deepest part of the Atlantic Ocean
  • Automated trench digging on a street in Baku

trench         
n.
1) to dig a trench
2) a slit trench
3) (misc.) in the trenches (during World War I)
trench         
I. v. a.
1.
Cut, carve.
2.
Furrow, intrench.
3.
Ditch, dig into ditches, channel.
4.
Intrench, fortify with a ditch and parapet.
II. v. n.
Encroach, intrude, infringe, trespass, intrench.
III. n.
Ditch, fosse, moat, drain, sewer, water-course, pit, gutter, channel, trough.
trench         
(trenches)
1.
A trench is a long narrow channel that is cut into the ground, for example in order to lay pipes or get rid of water.
N-COUNT
2.
A trench is a long narrow channel in the ground used by soldiers in order to protect themselves from the enemy. People often refer to the battle grounds of the First World War in Northern France and Belgium as the trenches.
We fought with them in the trenches.
...trench warfare.
N-COUNT: usu the N in pl, N n

Wikipedia

Trench

A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch), and narrow compared with its length (as opposed to a simple hole or pit).

In geology, trenches result from erosion by rivers or by geological movement of tectonic plates. In civil engineering, trenches are often created to install underground utilities such as gas, water, power and communication lines. In construction, trenches are dug for foundations of buildings, retaining walls and dams, and for cut-and-cover construction of tunnels. In archaeology, the "trench method" is used for searching and excavating ancient ruins or to dig into strata of sedimented material. In geotechnical engineering, trenches serve for locating faults and investigating deep soil properties. In trench warfare, soldiers occupy trenches to protect them against weapons fire.

Trenches are dug by use of manual tools such as shovels and pickaxes, or by heavy equipment such as backhoes, trenchers and excavators.

For deep trenches, the instability of steep earthen walls requires engineering and safety techniques such as shoring. Trenches are usually considered temporary structures to be backfilled with soil after construction, or abandoned after use. Some trenches are stabilized using durable materials such as concrete to create open passages such as canals and sunken roadways.

Examples of use of Trench
1. We are in a trench, and our allies are with us in the trench.
2. "We should fight for freedom trench by trench." Voting was extended by four hours to accommodate latecomers.
3. Trench coats are black, oversized and asymmetrical.
4. If a trench is required, modern systems providing ground support — the shoring that holds the trench walls in place — can be installed.
5. Brandt, the Chesapeake &Ohio park superintendent, said of the trench.