n.
Function: transitive verb
Date: 15th century
1 : to make a cut in : CARVE
2 a : to protect with or as if with a trench b : to cut a trench in : DITCH
intransitive verb
1 a : ENTRENCH , ENCROACH < trench ing on other domains which were more vital ― Sir Winston Churchill> b : to come close : VERGE
2 : to dig a trench