The child built a tall sand castle by the sea. Each wave would undermine the base, and her small hands would also undermine the walls. A playful dog jumped and barked, trying to undermine a tower. A seagull pecked and tried to undermine the last tower. The last wave undermined the last wall; the castle fell. She laughed, then rebuilt.
🧑🎓 CEFR Level: C1 Advanced
This word is at the C1 level, which means it’s part of advanced English. It’s used in sophisticated conversations, professional settings, and academic discussions. Words at this level help you express yourself fluently and precisely in nuanced situations.
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