HyperDic: train_set

English > 1 sense of the expression *train set*:
NOUN	artifact	train set	a toy consisting of small models of railroad trains and the track for them to run on

English > *train set*: 1 sense > noun 1, artifact
Meaning	A toy consisting of small models of railroad trains and the track for them to run on.
Broader	plaything, toy	An artifact designed to be played with