Warrant Officer

A Warrant Officer is a military officer of the armed forces ranking above a non-commissioned officer (NCO) but below a commissioned officer. They hold office on a warrant rather than a commission. Being promoted to the rank of Warrant Officer First Class is considered a high honour for any NCO. Unlike NCOs, Warrant Officers are usually addressed by their juniors as "Sir" or "Ma'am" rather than their rank.

Every warrant officer has an appointment, and is usually referred to by his appointment rather than by his rank for example, Academy Sergeant Major (AcSM).