1.
on the way, en route
While traveling from one place to another.
2.
in the middle, halfway through
During the course of an activity or process, before completion.
Related Words
Related:
半ば (halfway point, midpoint)
Compare:
中途 (halfway, midway)
Compare:
中間 (middle)
Compare:
最中 (in the midst of)
Compare:
途中で (halfway)
Compare:
未了 (unfinished)