What is the meaning of cleave?

verb

• Separate or cut with a tool, such as a sharp instrument.
  • usage: "cleave the bone"
  • synonyms: split, rive
• Make by cutting into.
  • usage: "The water is going to cleave a channel into the rock"
• Come or be in close contact with; stick or hold together and resist separation.
  • usage: "The dress clings to her body"; "The label stuck to the box"; "The sushi rice grains cohere"
  • synonyms: cling, adhere, stick, cohere