trenching
/ˈtrench How to pronounce trench (audio)/ (ame, mw)
trenching — noun
1. a long, narrow hole that is cut into the ground, used for carrying water away fr
a long, narrow hole that is cut into the ground, used for carrying water away from an area or for protecting soldiers during a battle
The soldiers dug a deep trench around the camp to keep the enemy out.
dig a trench around [place] — positioning for defence
After the heavy rain, water ran quickly through the trench beside the wheat field.
Niran used a shovel to dig a narrow trench around the vegetable patch.
Workmen are cutting a trench in the street to lay new water pipes.
文法句型
a + trench
常見錯誤
2. a long, loose coat, usually with a belt and made of water-resistant material, or
a long, loose coat, usually with a belt and made of water-resistant material, originally worn by soldiers but now a common style of outerwear
Gabriela put on her beige trench before walking to the bus stop in the rain.
Detectives in old films often wear a trench and a hat pulled down low.
trench — short form of trench coat
The shop window displayed a long grey trench with wide lapels and a matching belt.
Yumi bought a lightweight trench for her trip to London in early autumn.
- trench coat
the full, formal name of this garment
文法句型
a + trench
a + trench coat
用法筆記
Can be shortened to 'trench' in informal conversation (e.g. 'I need a new trench for autumn'). In formal writing, the full term 'trench coat' is preferred.
常見錯誤
3. a situation or level in which people continue doing something in a determined wa
a situation or level in which people continue doing something in a determined way, similar to soldiers fighting from fixed positions in a war
For months the city council and school board were stuck in their trenches over the budget.
in their trenches — metaphorical stalemate
During the long strike, both the company and the workers settled into their trenches and refused to talk.
The union-management negotiations turned into a trench war, with both sides repeating the same demands week after week.
In the world of advertising, agencies fight a daily trench battle for the biggest clients.
- front line
more literal; 'trench' in this sense emphasizes stalemate and fixed positions
- battleground
focuses on the conflict itself rather than the entrenched position
文法句型
in the + trench
a + trench of + noun
用法筆記
Almost always used in metaphorical expressions such as 'trench warfare', 'trench war', or 'in the trenches'. The literal military meaning of the noun (sense 1) is far more common.
4. a very deep, long, narrow valley on the ocean floor, with steep sides
a very deep, long, narrow valley on the ocean floor, with steep sides
The Mariana Trench is the deepest place in any of the world's oceans.
proper name + Trench — naming pattern for ocean trenches
Scientists sent a small submarine down into the ocean trench to study the creatures that live there.
The Japan Trench lies east of the Japanese islands, where two tectonic plates meet.
The Peru-Chile Trench runs along the coast of South America, reaching depths of over eight thousand metres.
- trough
wider and shallower than an ocean trench; 'trench' implies very steep sides and great depth
文法句型
the + name + Trench
用法筆記
Always used with a capital T when part of a proper name (e.g. the Mariana Trench, the Peru–Chile Trench). Do not confuse with 'trough', which is a wider, shallower depression.
常見錯誤
trenching — verb
- trenchingpresent simple I / you / we / they
- trenchings3rd person singular
- trenchinging-ing form
- trenchingedpast simple
1. to cut or carve a deep mark into the surface of something, such as wood, stone,
to cut or carve a deep mark into the surface of something, such as wood, stone, or metal
Into the soft clay, the artist trenched fine lines before firing the finished pot.
trench + into + material — fronted prepositional phrase for variety
Using a metal ruler as a guide, Hari trenched a straight groove along the edge of the wooden board.
The silver locket had been trenched with delicate swirls by Marta, creating an elegant pattern.
To stop water from collecting against the wall, the builder trenched a channel in the stone.
文法句型
trench + noun (object)
用法筆記
This sense is formal and relatively rare in everyday speech. 'Cut', 'carve', or 'groove' are more common alternatives. Used mainly in crafting, stonework, or descriptive writing.
常見錯誤
2. to surround or defend a place by digging trenches, or to make a position stronge
to surround or defend a place by digging trenches, or to make a position stronger as if protected by trenches
A hundred armed men trenched the hilltop and guarded it day and night against attack.
trench + place — active transitive, fortification
The general ordered his men to trench the eastern side of the camp before nightfall.
The defenders trenched every path leading to the castle, leaving the enemy no easy route in.
The old fort had been trenched so many times that the ground around it was a maze of ditches.
- expose
to leave undefended
文法句型
be trenched (with)
trench + noun (place)
用法筆記
Almost exclusively used in historical or military contexts. In modern English, 'entrench' (which carries a metaphorical sense) or 'fortify' are far more common than the bare verb 'trench'.
3. to dig a long, narrow hole in the ground, especially for water to flow through o
to dig a long, narrow hole in the ground, especially for water to flow through or for pipes to be laid
The workers trenched the area behind the building to install a new drainage system.
trench + area — digging for drainage
Eve trenched a line across the garden so the rainwater would not flood the house.
Before planting the vines, the farmer trenched the field in straight rows.
The road repair crew trenched the street to reach a broken gas pipe.
- ditch
as a verb, 'ditch' can mean 'dig a ditch', and is more common in everyday English
文法句型
trench + noun (ground/field/road)
用法筆記
Unlike carve (sense 1), which applies to hard surfaces such as wood, stone, or metal, trench (sense 3) specifically refers to digging in earth or soft ground — for drainage pipes, irrigation channels, or utility lines.
常見錯誤
4. to gradually take away something that belongs to someone else, such as their rig
to gradually take away something that belongs to someone else, such as their rights, land, or time, often in a way that is not fair
The new law was criticized for trenching upon the rights of ordinary citizens.
trench upon + rights/liberties — formal pattern
Neighbouring farmers began to trench on land that had belonged to the village for generations.
The growing business slowly trenched upon the quiet residential area, building shops and offices.
Tunde felt that the new rules trenched on his freedom to choose his own working hours.
- respect
to respect boundaries rather than cross them
文法句型
trench on/upon + noun
用法筆記
Almost always followed by 'on' or 'upon'. This sense is very formal; in modern English, 'encroach' or 'infringe' are far more common. 'Trench upon' may sound old-fashioned or literary.
常見錯誤
5. to be very near to a particular state, quality, or condition, especially one tha
to be very near to a particular state, quality, or condition, especially one that is extreme or negative
What he asked for — twice the usual salary — trenched on the unreasonable.
trench on + the + adjective — nominalised quality
By interrupting every question, the speaker's comments trenched on rudeness.
The violence in the film is so graphic that it trenches on what most people consider acceptable.
Layla's enthusiasm for the project trenched on obsession, a preoccupation that consumed her every waking moment.
文法句型
trench on + noun
用法筆記
Often used to describe behaviour or qualities that are close to being unacceptable. The closely related word 'verge' is much more common. 'Trench on' in this sense is primarily literary.
常見錯誤
6. to perform the activity of digging trenches, describing the general work rather
to perform the activity of digging trenches, describing the general work rather than focusing on a specific object being dug into
Trenching through the freezing night, the soldiers prepared defensive positions for the morning attack.
trenching — present participle as fronted adverbial
For hours under the hot sun, Eitan and his unit kept trenching as they built defensive lines across the ridge.
kept trenching — continuous aspect with activity verb
From dawn until dusk, the prisoners of war were forced to trench without a break.
Every spring, farmers in this region trench to prepare the rice paddies for planting season.
- dig
general word; 'trench' is more specific about the shape and purpose of the digging
文法句型
trench + adverb (deeply / constantly)
用法筆記
Distinguish from verb/3 (DIG DITCH): verb/3 is transitive and requires an object (what is being trenched). This sense is intransitive — it describes the general activity of digging trenches, not the act of cutting a trench into a specific surface. Also distinct from verb/2 (FORTIFY), which focuses on surrounding or defending a position with trenches.