loner vs lone hand

loner and lone hand both are nouns.

Word	Noun	Adjective	Verb	Adverb
loner	Yes	No	No	No
lone hand	Yes	No	No	No

As nouns, loner and lone hand are synonyms defined as:

loner and lone hand: a person who avoids the company or assistance of others

Other synonyms of loner include lone wolf.

loner (noun)	lone hand (noun)
a person who avoids the company or assistance of others	a person who avoids the company or assistance of others