yearling vs toddler

yearling and toddler both are nouns.

Word	Noun	Adjective	Verb	Adverb
yearling	Yes	No	No	No
toddler	Yes	No	No	No

As nouns, yearling and toddler are synonyms defined as:

Other synonyms of yearling include bambino, tot.

yearling (noun)	toddler (noun)
an animal in its second year	a young child who is just beginning to walk
a racehorse considered one year old until the second Jan. 1 following its birth
a young child who is just beginning to walk