omen 
/ˈoʊmən/ noun
plural omens /ˈoʊmən/ noun [count] : something that is believed to be a sign or warning of something that will happen in the future
▪ a bad omen ▪ They regarded the win as a good omen for the team. ▪ omens of things to come
▪ a bad omen ▪ They regarded the win as a good omen for the team. ▪ omens of things to come
