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1)
#9,791

Inflections of

Meaning
    1. cavity; hollow; void
      We heard somber hollow sounds from the cave.
    2. hollow (voice, smile, etc.); blank (eyes, look, etc.); vacant (expression, stare, etc.); empty (words, heart, etc.)
      Only applies to 虚ろ、空ろ
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3)
#176,375
Meaning
    1. hollow; cavity; hole
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4)
#392,701
Meaning
    1. anatomy
      sinus; cavity; antrum
    2. neighborhood (administrative division in North Korea)
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16)
#7,545
Common
Meaning
    1. cave; cavern; grotto
      This is what I found in the cave.
    1. EN A cave is a hollow place in the ground, specifically a natural underground space large enough for a human to enter.
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