A warrant officer is a person in the army, the air force, or the marines who is above the rank of sergeant and below the rank of lieutenant. In the United States Navy, a warrant officer is above the rank of petty officer and below the rank of ensign.
warrant officer in British English
noun
an officer in certain armed services who holds a rank between those of commissioned and noncommissioned officers. In the British army, the rank has two classes
regimental sergeant major, company sergeant major
warrant officer in American English
an officer of the U.S. armed forces ranking above a noncommissioned officer but below a commissioned officer and holding office on a warrant instead of a commission
Examples of 'warrant officer' in a sentence
warrant officer
They can progress to leading hand, then to petty officer, through to chief petty officer or warrant officer.