A versatile kitchen knife suitable for a wide range of cutting tasks, often used as a general-purpose blade in home cooking.
With an all-purpose kitchen knife, you can make most dishes.
三徳包丁 is a specific type of all-purpose knife popular in Japanese kitchens, while 万能包丁 is a broader term for any versatile kitchen knife.
包丁 is the general term for a kitchen knife; 万能包丁 specifies a multi-purpose one.
Compound of 万能 (ban'nō, 'all-purpose') and 包丁 (hōchō, 'kitchen knife').