noun, noun which may take the genitive case particle 'no'
exclusive reservation; full booking; chartering
Refers to reserving a facility, vehicle, or service entirely for one's own group, excluding other users. Often used in contexts like 貸し切り (chartered) but from the renter's perspective. Common with nouns like バス (bus), 会場 (venue), 店 (restaurant).
See also: 貸し切り
結婚式のためにレストランを借り切りにした。
We reserved the restaurant exclusively for the wedding reception.
借り切りのバスで観光地を回った。
We toured the sights on a chartered bus.
貸し切り is the provider's perspective (reserved for a customer), while 借り切り is the customer's perspective (reserving for oneself). Both often describe the same situation.
Compound of 借り (kari, 'borrowing/renting') and 切り (kiri, 'cut/limit'), literally 'cut off for borrowing', i.e., reserving something exclusively.