1.
partition, divider, separator
A physical barrier or divider used to separate spaces, such as a room divider, a partition wall, or a dividing panel.
部屋に仕切りを入れた。
I put a partition in the room.
カーテンで仕切りを作った。
I made a divider with a curtain.
オフィスの仕切りを外して、広い空間にした。
We removed the office partitions to create a wide open space.
2.
management, running (of an event or situation)
Taking charge of and managing a situation, event, or process. The person who does this is the 仕切り役.
彼がこの会議の仕切り役だ。
He is the one running this meeting.
イベントの仕切りがうまい。
She's good at managing events.
誰が仕切っているのか分からず、現場が混乱した。
Nobody knew who was in charge, and the site fell into confusion.
COMMON COLLOCATIONS:
- 仕切りを入れる (to install a partition)
- 仕切り壁 (partition wall)
- 仕切り役 (person in charge, manager)
- 仕切り直す (to start over, to reset)
Sense 2 comes from the verb 仕切る (to manage, to run things), whose noun form is 仕切り.