The term 'track support' refers to the components of a railway track that provide stability and strength. The two crossword solutions for this term are 'TRESTLE' (7 letters) and 'crosstie' (8 letters). A TRESTLE is a structure composed of a number of short pieces of timber or steel that are arranged in a series of steps, and is used to support a railway track. Crossties, also known as sleepers, are the wooden or concrete blocks that are laid perpendicular to the rails and provide a base for the track. Together, trestles and crossties form the track support system of a railway track.