What does annoyance mean?
The definition of annoyance
An*noy”ance, n.
Etym: [OF. anoiance, anuiance.]

1 The act of annoying, or the state of being annoyed; molestation; vexation; annoy. A deep clay, giving much annoyance to passengers. Fuller. For the further annoyance and terror of any besieged place, they would throw into it dead bodies. Wilkins.
2 That which annoys. A grain, a dust, a gnat, a wandering hair, Any annoyance in that precious sense. Shak.