electrician vs linesman

electrician and linesman both are nouns.

Word	Noun	Adjective	Verb	Adverb
electrician	Yes	No	No	No
linesman	Yes	No	No	No

As nouns, electrician and linesman are synonyms defined as:

electrician and linesman: a person who installs or repairs electrical or telephone lines

Other synonyms of electrician include lineman.

electrician (noun)	linesman (noun)
a person who installs or repairs electrical or telephone lines	a person who installs or repairs electrical or telephone lines
	official (in tennis, soccer, football, etc.) who assists the referee in some way (especially by watching for out of bounds or offside)