noun

• a knot with two loops and loose ends; used to tie shoelaces
• a slightly curved piece of resilient wood with taut horsehair strands; used in playing certain stringed instruments
• front part of a vessel or aircraft
  "he pointed the bow of the boat toward the finish line"
• a weapon for shooting arrows, composed of a curved piece of resilient wood with a taut cord to propel the arrow

verb

• bend one's knee or body, or lower one's head
  "He bowed before the King"
• yield to another's wish or opinion
  "The government bowed to the military pressure"
• bend the head or the upper part of the body in a gesture of respect or greeting
  "He bowed before the King"
• bend one's back forward from the waist on down
  "he crouched down"