pendent vs lavalier

pendent and lavalier both are nouns.

Word	Noun	Adjective	Verb	Adverb
pendent	Yes	Yes	No	No
lavalier	Yes	No	No	No

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

pendent: an adornment that hangs from a piece of jewelry (necklace or earring)
lavalier: jeweled pendant worn on a chain around the neck

Other hyponyms of pendent include lavaliere, lavalliere.

pendent (noun)	lavalier (noun)
branched lighting fixture; often ornate; hangs from the ceiling	jeweled pendant worn on a chain around the neck
an adornment that hangs from a piece of jewelry (necklace or earring)

pendent (adjective)	lavalier (adjective)
held from above and hanging down