What is "warrant officer class 2"

alt. 1 (context UK English) NATO rank OR-8 in all British armed services. 2 (context UK Army English) A warrant officer in the British Army ranking above staff sergeant and below warrant officer class 1; company sergeant major 3 (context UK Marines English) A warrant officer in the Royal Marines ranking above colour sergeant and below warrant officer class 1. 4 (context UK Navy English) A warrant officer in the Royal Navy ranking above chief petty officer and below warrant officer class 1. 5 (context Australia Army English) A warrant officer in the Australian Army, ranking above sergeant and below warrant officer class 1. n. 1 (context UK English) NATO rank OR-8 in all British armed services. 2 (context UK Army English) A warrant officer in the British Army ranking above staff sergeant and below warrant officer class 1; company sergeant major 3 (context UK Marines English) A warrant officer in the Royal Marines ranking above colour sergeant and below warrant officer class 1. 4 (context UK Navy English) A warrant officer in the Royal Navy ranking above chief petty officer and below warrant officer class 1. 5 (context Australia Army English) A warrant officer in the Australian Army, ranking above sergeant and below warrant officer class 1.