There are many synonyms for the term "cn viis" which is actually the abbreviation for "Cranial Nerve VI". Some of these include the Abducens Nerve, Sixth Cranial Nerve, and Nervus Abducens. This nerve plays a vital role in the control of eye movement and is responsible for the movement of the lateral rectus muscle which helps in the outward or lateral movement of the eye. Damage to the CN VI can cause eye movement disorders like diplopia or nystagmus. Understanding the various synonyms for the term cn viis is important particularly in medical and health spheres where the proper identification of the nerve is crucial for diagnosis purposes.