teething ring vs baby's dummy

teething ring and baby's dummy both are nouns.

Word	Noun	Adjective	Verb	Adverb
teething ring	Yes	No	No	No
baby's dummy	Yes	No	No	No

As nouns, teething ring and baby's dummy are synonyms defined as:

teething ring and baby's dummy: device used for an infant to suck or bite on

Other synonyms of teething ring include comforter, pacifier.

teething ring (noun)	baby's dummy (noun)
device used for an infant to suck or bite on	device used for an infant to suck or bite on