T-barDefinition of T-bar noun 1a beam or bar shaped like the letter T. (also T-bar lift) a type of ski lift in the form of a series of inverted T-shaped bars for towing two skiers at a time uphill. [often as modifier] a T-shaped fastening on a shoe or sandal:a pair of T-bar sandals 2the horizontal line of the letter T. T-bar in other Oxford dictionaries Definition of T-bar in the US English dictionary