There is not an actual abbreviation for commissioner since the word itself comes from the "Commission".
In several fantasy sports you will see people refer to "the commissioner" in the slang version as "the commish".
Commission:http://www.merriam-webster.com/dictionary/commission
Commissioner:http://www.merriam-webster.com/dictionary/commissioner
Capt. is the abbreviation for captain
Navy and Coast Guard: "CAPT"Army: "CPT"Air Force and Marine Corps: "Capt"
Navy and Coast Guard: "CAPT"Army: "CPT"Air Force and Marine Corps: "Capt"
The abbreviation of electron is e−.
The abbreviation of "have not" is "haven't."
The abbreviation for police captain is typically "Capt." This abbreviation is commonly used in police departments and law enforcement contexts to denote the rank of captain.
Capt. is the abbreviation for captain
an abbreviation for captain
The abbreviation for captain is usually "Capt." or "Cpt."
Captain!
The short form for captain is "Capt." This abbreviation is commonly used in various contexts, such as in military, aviation, and maritime settings, as well as in sports to denote the team leader.
Navy and Coast Guard: "CAPT"Army: "CPT"Air Force and Marine Corps: "Capt"
Navy and Coast Guard: "CAPT"Army: "CPT"Air Force and Marine Corps: "Capt"
The abbreviation is AAS.The abbreviation is AAS.The abbreviation is AAS.The abbreviation is AAS.The abbreviation is AAS.The abbreviation is AAS.
The abbreviation for abbreviation is "abbr."
The title "Captain", or the abbreviation CAPT would be appropriate. The salutation in a letter might read "Dear Sir" or "Dear CAPT Smith". When a politician or military officer retires, he's allowed to use the form of address of the highest rank held.
The abbreviation for centimeter is cm. The abbreviation for meter is m. The abbreviation for inches is in. The abbreviation for liter is L.