"threatened" in the verb sense
1. endanger, jeopardize, jeopardise, menace, threaten, imperil, peril
pose a threat to present a danger to
"The pollution is endangering the crops"
2. threaten
to utter intentions of injury or punishment against
"He threatened me when I tried to call the police"
3. threaten
to be a menacing indication of something
"The clouds threaten rain"
"Danger threatens"
"threatened" in the adjective sense
1. threatened
of flora or fauna) likely in the near future to become endangered
"the spotted owl is a threatened species, not yet an endangered one"
Source: WordNet® (An amazing lexical database of English)
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