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 תְּבִ֛יר translates into English as broken.
The Tevir is sung on a low tone, going downward at the beginning and upward at the end.