jigger vs drinking glass

jigger and drinking glass both are nouns.

Word	Noun	Adjective	Verb	Adverb
jigger	Yes	No	No	No
drinking glass	Yes	No	No	No

As nouns, drinking glass is a hypernym of jigger; that is, drinking glass is a word with a broader meaning than jigger:

jigger: a small glass adequate to hold a single swallow of whiskey
drinking glass: a container made of glass for holding liquids while drinking

Other hypernyms of jigger include glass.

jigger (noun)	drinking glass (noun)
larval mite that sucks the blood of vertebrates including human beings causing intense irritation	a container made of glass for holding liquids while drinking
a small glass adequate to hold a single swallow of whiskey
any small mast on a sailing vessel; especially the mizzenmast of a yawl