연수

Etymology 1
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Noun

 * 1) training, research

Etymology 2
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Noun

 * 1)  medulla oblongata

Etymology 3
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Noun

 * 1)  soft water

Etymology 4
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Noun

 * 1) a tree that seems hazy or indistinct in the distance due to smoke, fog, mist, or clouds

Etymology 5
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Noun

 * 1)  number of years; length of time

Etymology 6
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Noun

 * 1)  water poured on an inkstone to make ink