builder vs constructor

builder and constructor both are nouns.

Word	Noun	Adjective	Verb	Adverb
builder	Yes	No	No	No
constructor	Yes	No	No	No

As nouns, builder and constructor are synonyms defined as:

builder and constructor: someone who contracts for and supervises construction (as of a building)

builder (noun)	constructor (noun)
someone who contracts for and supervises construction (as of a building)	someone who contracts for and supervises construction (as of a building)
a person who creates a business or who organizes and develops a country
a substance added to soaps or detergents to increase their cleansing action