Sir Humphrey Gilbert vs Humphrey Gilbert

Sir Humphrey Gilbert and Humphrey Gilbert both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sir Humphrey Gilbert	Yes	No	No	No
Humphrey Gilbert	Yes	No	No	No

As nouns, Sir Humphrey Gilbert and Humphrey Gilbert are synonyms defined as:

Sir Humphrey Gilbert and Humphrey Gilbert: English navigator who in 1583 established in Newfoundland the first English colony in North America (1539-1583)

Other synonyms of Sir Humphrey Gilbert include Gilbert.

Sir Humphrey Gilbert (noun)	Humphrey Gilbert (noun)
English navigator who in 1583 established in Newfoundland the first English colony in North America (1539-1583)	English navigator who in 1583 established in Newfoundland the first English colony in North America (1539-1583)