The lions roared fiercely at the intruders.
Meaning: This sentence describes the sound made by lions when they feel threatened. It's like saying, The lions made a loud and aggressive sound at the people who came into their territory without permission.
Choice of Words: Roared means to make a loud, deep sound. Fiercely means in a wild and aggressive manner. Intruders are people who enter a place without permission.
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Related Expressions