Presuming you mean "chief", the highest ranking officer in the British army is called a Brigadier.
In the US Military, the highest rank of any MOS, Tech, or Rating is O-10. This varies by service, but in the US Army and US Marines it equates to General.
chef
Executive Chef. Particularly in the US and England. European kitchens will more often use the term Chef de cusine.
The highest rank for a skill is 1
The highest ninja rank is kage
The highest rank is Tai Pan
The black belt is the highest rank in martial arts.
The highest rank in Halo: Reach is Inheritor.
The highest rank you can reach is 46.
Domain is the highest rank in taxonomic classification.
Baiji - Baiji is the highest rank you can reach in sumdog, it's the 31st rank in sumdog.
The highest rank currently known in Platform Racing 2 is UnknownAx with a rank of 60, and he is tied with quesin, but UnknownAx hacked.
highest rank in the world is : SECRETARY GENERAL OF UNITED NATION