sandglass vs horologe

sandglass and horologe both are nouns.

Word	Noun	Adjective	Verb	Adverb
sandglass	Yes	No	No	No
horologe	Yes	No	No	No

As nouns, horologe is a hypernym of sandglass; that is, horologe is a word with a broader meaning than sandglass:

sandglass: timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage
horologe: a measuring instrument or device for keeping time

Other hypernyms of sandglass include timekeeper, timepiece.

sandglass (noun)	horologe (noun)
timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage	a measuring instrument or device for keeping time