The portenders gathered at the entrance of the theater.

The dark clouds in the sky were a portender of the coming storm.

The dark clouds and thunder were portentious of an impending storm.

My friend's last name is Portelli.

The portentosity of the storm was evident in the dark clouds and strong winds.

The Portellis are a close-knit family.

The portendments of the future are uncertain.

The black cat crossing your path is considered a portendment of bad luck.

My friend's last name is Portera.

The Porteras are very friendly and helpful.