Pilgrim Father vs Pilgrim

Pilgrim Father and Pilgrim both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pilgrim Father	Yes	No	No	No
Pilgrim	Yes	No	No	No

As nouns, Pilgrim Father and Pilgrim are synonyms defined as:

Pilgrim Father and Pilgrim: one of the colonists from England who sailed to America on the Mayflower and founded the colony of Plymouth in New England in 1620

Pilgrim Father (noun)	Pilgrim (noun)
one of the colonists from England who sailed to America on the Mayflower and founded the colony of Plymouth in New England in 1620	one of the colonists from England who sailed to America on the Mayflower and founded the colony of Plymouth in New England in 1620