General Threat:
* The looming storm posed a threat to the coastal town.
* The dictator's words were a threat to the peace treaty.
Specific Threat:
* The company's financial troubles are a threat to its future.
* The cyber attack was a threat to national security.
Figurative Threat:
* The new competitor is a threat to our market share.
* Her anger was a threat to their relationship.
Other Examples:
* He received a threat from an anonymous source.
* The government is taking steps to address the threat of terrorism.
* The environmental impact of climate change is a serious threat to our planet.
The best way to use the word "threat" depends on the context of your sentence.