The term 'armless seat' refers to a type of furniture that does not have arms. Three examples of this type of seating are a STOOL (5 letters), OTTOMAN (7 letters), and sidechair (9 letters). A STOOL is a short, four-legged piece of furniture that is often used in kitchens or bars. An OTTOMAN is a low, upholstered seat with no arms or back, and is often used as a footrest. A sidechair is a chair without arms that is usually placed next to a sofa or other seating. All three of these pieces of furniture provide comfortable seating without the use of arms.