dinkey vs locomotive engine

dinkey and locomotive engine both are nouns.

Word	Noun	Adjective	Verb	Adverb
dinkey	Yes	No	No	No
locomotive engine	Yes	No	No	No

As nouns, locomotive engine is a hypernym of dinkey; that is, locomotive engine is a word with a broader meaning than dinkey:

dinkey: a small locomotive
locomotive engine: a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks

Other hypernyms of dinkey include engine, locomotive, railway locomotive.

dinkey (noun)	locomotive engine (noun)
a small locomotive	a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks