This is the 3700th most frequent Russian word.
угрозе
The Russian word "угрозе" means "to a threat" or "to danger" (dative case of "угроза").
In this sentence, "угрозой" (the instrumental case of "угроза") is used to describe a state or condition being influenced by a potential danger or harm.
Страна находится под угрозой нападения.
The country is under the threat of an attack.
In this sentence, "угрозы" (the genitive case of "угроза") is used to indicate the absence of something, specifically a threat, from something else.
Её слова не представляли угрозы.
Her words did not pose a threat.
In this sentence, "угрозу" (the accusative case of "угроза") is used as the direct object of the verb, indicating that the threat was the thing being 'laughed at'.