trench on (verb) join: touch; border on
Sinonime: abut,
adjoin, be adjacent to, be at hand, be close to, be contiguous to,
bound,
butt,
communicate, conjoin,
extend,
fringe, hem, lie beside, lie near, lie next to,
line,
march,
meet,
neighbor, open into,
parallel,
reach,
rim, skirt, trench on, verge on
Antonime: separate