What is the meaning of trailing?

noun

• The pursuit (of a person or animal) by following tracks or marks they left behind.
  • synonyms: tracking

verb

• To lag or linger behind.
  • usage: "But in so many other areas we still are dragging"
  • synonyms: drag, trail, get behind, hang back, drop behind, drop back
• Go after with the intent to catch.
  • usage: "The policeman chased the mugger down the alley"; "the dog chased the rabbit"
  • synonyms: chase, chase after, trail, tail, tag, give chase, dog, go after, track
• Move, proceed, or walk draggingly or slowly.
  • usage: "John trailed behind his class mates"; "The Mercedes trailed behind the horse cart"
  • synonyms: trail, shack
• Hang down so as to drag along the ground.
  • usage: "The bride's veiled trailed along the ground"
  • synonyms: trail
• Drag loosely along a surface; allow to sweep the ground.
  • usage: "The toddler was trailing his pants"; "She trained her long scarf behind her"
  • synonyms: trail, train