noun
all-purpose knife; utility knife
Refers to a multi-function pocket knife, typically with various tools like blades, scissors, and screwdrivers. The Swiss Army knife is a classic example.
キャンプには万能ナイフを持っていくと便利だ。
It's handy to bring an all-purpose knife when camping.
彼はポケットから万能
He took out his utility knife from his pocket and opened the can.