The term 'Acts as an Omen' can be summarized by two crossword solutions: 'BODES' (5 letters) and 'PORTENDS' (8 letters). BODES is a verb meaning to indicate or suggest something, usually of a foreboding nature. PORTENDS is also a verb, meaning to be a sign of something, usually of a bad or ominous nature. Both words are used to describe a situation in which a person or event is seen as a warning of something to come.