fledgling vs freshman

fledgling and freshman both are nouns.

Word	Noun	Adjective	Verb	Adverb
fledgling	Yes	Yes	No	No
freshman	Yes	Yes	No	No

As nouns, fledgling and freshman are synonyms defined as:

Other synonyms of fledgling include entrant, fledgeling, neophyte, newbie, newcomer, starter.

fledgling (noun)	freshman (noun)
young bird that has just fledged or become capable of flying	a first-year undergraduate
any new participant in some activity	any new participant in some activity

fledgling (adjective)	freshman (adjective)
(of a young bird) having acquired its flight feathers	used of a person in the first year of an experience (especially in United States high school or college)
young and inexperienced