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EtymologyEdit

tetra- +‎ -gram

NounEdit

tetragram (plural tetragrams)

  1. A group of four letters.
  2. Any of the 81 sets of solid lines ( for Heaven), once-broken lines ( for Earth) and twice-broken lines (𝌀 for Man) formed by combinations of four monograms (two digrams or bigrams, in other words) in the divination of the Taixuanjing.

SynonymsEdit

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AnagramsEdit