lozenge vs capsule

lozenge and capsule both are nouns.

Word	Noun	Adjective	Verb	Adverb
lozenge	Yes	No	No	No
capsule	Yes	No	Yes	No

As nouns, capsule is a hyponym of lozenge; that is, capsule is a word with a more specific, narrower meaning than lozenge:

lozenge: a dose of medicine in the form of a small pellet
capsule: a pill in the form of a small rounded gelatinous container with medicine inside

Other hyponyms of lozenge include bolus, dragee, sleeping capsule, sleeping draught, sleeping pill, sleeping tablet.

lozenge (noun)	capsule (noun)
a dose of medicine in the form of a small pellet	a pill in the form of a small rounded gelatinous container with medicine inside
a small aromatic or medicated candy	a spacecraft designed to transport people and support human life in outer space
	a small container
	a pilot's seat in an airplane that can be forcibly ejected in the case of an emergency; then the pilot descends by parachute
	a structure that encloses a body part
	a shortened version of a written work
	a dry dehiscent seed vessel or the spore-containing structure of e.g. mosses

lozenge (verb)	capsule (verb)
	put in a short or concise form; reduce in volume
	enclose in a capsule