pearl vs dewdrop

pearl and dewdrop both are nouns.

Word	Noun	Adjective	Verb	Adverb
pearl	Yes	No	Yes	No
dewdrop	Yes	No	No	No

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

Other hyponyms of pearl include teardrop.

pearl (noun)	dewdrop (noun)
a shade of white the color of bleached bones	a drop of dew
a smooth lustrous round structure inside the shell of a clam or oyster; much valued as a jewel
a shape that is spherical and small

pearl (verb)	dewdrop (verb)
gather pearls, from oysters in the ocean