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dig a trench or trenches
e.g. The National Guardsmen were sent out to trench
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cut a trench in, as for drainage
e.g. ditch the land to drain it
e.g. trench the fields
Synonym: ditch
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set, plant, or bury in a trench
e.g. trench the fallen soldiers
e.g. trench the vegetables
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cut or carve deeply into
e.g. letters trenched into the stone
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fortify by surrounding with trenches
e.g. He trenched his military camp
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impinge or infringe upon
e.g. This impinges on my rights as an individual
e.g. This matter entrenches on other domains
Synonym: impinge encroach entrench