1.
a move (in shogi or go); a step, a measure
A single move in a board game such as shogi or go. Figuratively, a step taken to deal with a situation.
2.
(一手に) single-handedly; all by oneself
With に: doing or taking on something entirely by oneself, or drawing something entirely to oneself.
COMMON COLLOCATIONS (sense 1, a move):
- 次の一手: the next move
- 一手を指す / 打つ: to make a move (in shogi / go)
- 打開の一手: a move to break a deadlock (also figurative)
COMMON COLLOCATIONS (sense 2, single-handedly):
- 一手に引き受ける: to take on all by oneself
- 一手に担う: to bear sole responsibility for
- 一手に集める: to draw (attention, popularity) entirely to oneself