Platoon/pləˈtuːn/ Definition 1 of 3Pro Tip 1/3Military Context Used specifically to refer to a military unit; implies a structured, disciplined team. The new recruits joined the platoon at dawn. Pro Tip 2/3Platoon Size A platoon consists of around 15 to 30 soldiers, emphasizing a smaller subset of a company. He was proud to lead his first platoon. Pro Tip 3/3Platoon Leader A platoon is often led by a junior officer; knowing this highlights the leadership structure. The platoon leader ordered a tactical retreat.