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Tevir (Hebrew: תְּבִיר, with variant English spellings including T'vir and Tebir) is a cantillation mark commonly found in the Torah, Haftarah, and other Hebrew biblical books. It can be found independently or it can follow any number of other cantillation marks, very commonly a Mercha or Darga.
The Hebrew word תְּבִיר translates into English as broken.