The term "non-commissioned" refers to individuals who hold a rank in the military but do not possess a commission. Synonyms for this word can include "enlisted," "non-officer," and "sergeant." These terms are used to describe a group of military personnel who have undergone basic training but have not completed the rigorous training required for becoming an officer. Additionally, the term "Non-Commissioned Officer" (NCO) is commonly used to describe this group of individuals. NCOs are responsible for leading troops and ensuring operational readiness in the absence of commissioned officers. Overall, the term "non-commissioned" represents an essential group of individuals within the military hierarchy, serving as vital support to the officers who lead them.