[n] the act of troubling or annoying someone
[n] something or someone that causes anxiety; a source of unhappiness; "New York traffic is a constant concern"; "it's a major worry"
[n] anger produced by some annoying irritation
[n] the psychological state of being irritated or annoyed
Synonyms
annoyance, annoyance, annoyance, annoying, botheration, chafe, concern, headache, irritation, irritation, worry