worry vs worrier

worry and worrier both are nouns.

Word	Noun	Adjective	Verb	Adverb
worry	Yes	No	Yes	No
worrier	Yes	No	No	No

worry (noun)	worrier (noun)
something or someone that causes anxiety; a source of unhappiness	thinks about unfortunate things that might happen
a strong feeling of anxiety

worry (verb)	worrier (verb)
lacerate by biting
touch or rub constantly
be worried, concerned, anxious, troubled, or uneasy
disturb the peace of mind of; afflict with mental agitation or distress
be concerned with
be on the mind of