pearl vs bead

pearl and bead both are nouns.

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

As nouns, pearl and bead are synonyms defined as:

Other synonyms of pearl include drop.

pearl (noun)	bead (noun)
a shade of white the color of bleached bones	a small ball with a hole through the middle
a smooth lustrous round structure inside the shell of a clam or oyster; much valued as a jewel	a beaded molding for edging or decorating furniture
a shape that is spherical and small	a shape that is spherical and small

pearl (verb)	bead (verb)
gather pearls, from oysters in the ocean	string together like beads
	decorate by sewing beads onto
	form into beads, as of water or sweat, for example