IPA: //ˈtreɪnloʊd//
KK: /tren-lohd/
The total amount of people or goods that a train can carry at one time.
The trainload of coal arrived at the station early in the morning.
Trainload → It is formed from "train" (from Old French *traïner*, meaning to pull or drag) and "load" (from Old English *lād*, meaning a burden or cargo). The word "trainload" refers to the amount of cargo or burden that a train can carry.
Think of a train 'pulling' ('traïner') a 'burden' ('lād') — that's why trainload means the cargo a train carries.