What is the meaning of task?

noun

• Any piece of work that is undertaken or attempted.
  • usage: "he prepared for great undertakings"
  • synonyms: undertaking, project, labor
• A specific piece of work required to be done as a duty or for a specific fee.
  • usage: "estimates of the city's loss on that job ranged as high as a million dollars"; "the job of repairing the engine took several hours"; "the endless task of classifying the samples"; "the farmer's morning chores"
  • synonyms: job, chore

verb

• Assign a task to.
  • usage: "I tasked him with looking after the children"
• Use to the limit.
  • usage: "you are taxing my patience"
  • synonyms: tax