பொருள் : An exercise device consisting of an endless belt on which a person can walk or jog without changing place.
பொருள் : A mill that is powered by men or animals walking on a circular belt or climbing steps.
ஒத்த சொற்கள் : tread-wheel, treadwheel
பொருள் : A job involving drudgery and confinement.
ஒத்த சொற்கள் : salt mine