time freight noun2 •(US) Freight for movement on regularly scheduled trains providing expedited service and a guaranteed delivery time.No. 92 is drifting down into Burlington with time freight in 1946. — 1959 •A train carrying time freight.The Mike on Canadian Pacific time freight for the coast is given a helping hand west from Revelstoke to Clanwilliam, B.C., 8 miles, by Selkirk 5930. — 1959 formstime freights