bobbin vs spool

bobbin and spool both are nouns.

Word	Noun	Adjective	Verb	Adverb
bobbin	Yes	No	No	No
spool	Yes	No	Yes	No

As nouns, bobbin and spool are synonyms defined as:

bobbin and spool: a winder around which thread or tape or film or other flexible materials can be wound

Other synonyms of bobbin include reel.

bobbin (noun)	spool (noun)
a winder around which thread or tape or film or other flexible materials can be wound	a winder around which thread or tape or film or other flexible materials can be wound

bobbin (verb)	spool (verb)
	wind onto a spool or a reel
	transfer data intended for a peripheral device (usually a printer) into temporary storage