tetragram
Noun

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.
Synonyms


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