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ABC noun

  /eɪ biː siː/
  • The fundamentals of any subject. [First attested in the mid-16th century.]
а́збука, азы́
  • (obsolete) A primer for teaching the Latin alphabet and first elements of reading. [Attested from around (1350 to 1470) until the mid-17th century.]
а́збука, азы́, буква́рь
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