1The dark clouds gathering on the horizon portended a severe storm that would soon engulf the city.
2Does the recent decline in economic indicators portend a global recession, or is it merely a temporary fluctuation?
3The eerie silence in the abandoned mansion portended a sense of foreboding that made it difficult for the visitors to shake off.
4Critics argue that the new policy portends a significant shift in the government's stance on environmental issues, but its long-term implications remain unclear.
5There is a growing concern that the increasing number of natural disasters portends a catastrophic future for the planet unless drastic measures are taken to address climate change.