verb

• (transitive) To rend (a solid material) by holding or restraining in two places and pulling apart, whether intentionally or not; to destroy or separate.
  "He tore his coat on the nail."
• (transitive) To injure as if by pulling apart.
  "He tore some muscles in a weight-lifting accident."
• (transitive) To destroy or reduce abstract unity or coherence, such as social, political or emotional.
  "He was torn by conflicting emotions."
• (transitive) To make (an opening) with force or energy.
  "A piece of debris tore a tiny straight channel through the satellite."

noun

• (slang) A rampage.
  "to go on a tear"

noun

• (glass manufacture) A partially vitrified bit of clay in glass.

verb

• (intransitive) To produce tears.
  "Her eyes began to tear in the harsh wind."