"Erecter" is a very specific term that refers to a person or machine that erects something. Synonyms for "erecter" include "builder", "constructor", "installer", "assembler", "erector", "fabricator", and "installer". These terms can be used interchangeably depending on the context of the situation. For example, a builder is someone who constructs a structure or building, while an assembler is someone who puts together complex equipment or machinery. An erector is someone who erects a structure or building, while a fabricator is someone who creates or makes something from raw materials. No matter which word you choose, each one refers to someone who puts something together.