[ˌparəˈnɔɪə], (Noun)

Definitions:
- unjustified suspicion and mistrust of other people or their actions
(e.g: I got into a state of paranoia about various night noises which in daylight seems utterly silly)

- the unwarranted or delusional belief that one is being persecuted, harassed, or betrayed by others, occurring as part of a mental condition


Phrases:

Origin:
mid 18th century (in paranoia): modern Latin, from Greek, from paranoos ‘distracted’, from para ‘irregular’ + noos ‘mind’