communication trench links the front line and first support line trench supports trench.
trench warfare
A hole in the wall of a trench soldiers sleep in them.
A cup trench is used to protect unburnt area during a fire when the fire is moving downhill. A cup trench will catch rolling material that is burning and stop it from moving towards the unburned area.
The trench coat was made as an alternative to the great coat worn by French and British soldiers in WW1. Thomas Burberry made the first trench coat in 1920.
It means when you are in the trench, you go "over the top" of the trench to secure the next trench.
support trench means; supporting your country in the battles or it could also mean supporting the leader in your battle
If by "solution for trench warfare", you mean a way to end trench warfare, then the invention and widescale use of tanks, bombers and the Blitzkrieg in WWII solved trench warfare.
The reality of the trench warfare was that the conditions were terrible. The mean often got trench foot which lead to lose of the feet because of the conditions in the trenches.
deepest part of the world ocean
If you mean a pit ,as in a hole, then ditch and trench are synonyms to it.
Area dug out on the side of the trench.
A trench stretch is a long system of trench.
Java Trench
The plural of trench is trenches.
You are probably looking for "trench".
No. The Mariana Trench is the deepest trench in the world. It is located in the Pacific Ocean.