1.
ditch, channel, groove
A narrow channel or trench dug in the ground for drainage or other purposes.
溝 has two main uses: a physical ditch or groove, and a figurative gap between people or groups.
Physical meaning
A narrow channel, trench, or groove — from roadside ditches to record grooves.
Figurative meaning
A rift or divide, especially in relationships or understanding.
SIMILAR WORDS (figurative):