collect vs pick up

collect

verb
  • To collect payments. 

  • To get; particularly, get from someone. 

  • To infer; to conclude. 

  • To accumulate (a number of similar or related objects), particularly for a hobby or recreation. 

  • To gather together; amass. 

  • To come together in a group or mass. 

  • To collide with or crash into (another vehicle or obstacle). 

adv
  • With payment due from the recipient. 

noun
  • The prayer said before the reading of the epistle lesson, especially one found in a prayerbook, as with the Book of Common Prayer. 

adj
  • To be paid for by the recipient, as a telephone call or a shipment. 

pick up

verb
  • To pay for. 

  • To acquire (something) accidentally; to catch (a disease). 

  • To collect and detain (a suspect). 

  • To lift; to grasp and raise. 

  • To clean up; to return to an organized state. 

  • To point out the behaviour, habits, or actions of (a person) in a critical manner; used with on. 

  • To meet and seduce somebody for romantic purposes, especially in a social situation. 

  • To receive calls; to function correctly. 

  • To record; to notch up. 

  • To learn, to grasp; to begin to understand; to realize. 

  • To promote somebody who was previously passed over. 

  • To collect an object, especially in passing. 

  • To answer a telephone. 

  • To take control (physically) of something. 

  • To mark, to defend against an opposition player by following them closely. 

  • To behave in a manner that results in a foul. 

  • To restart or resume. 

  • To receive (a radio signal or the like). 

  • To notice, detect or discern; to pick up on 

  • To improve, increase, or speed up. 

  • To reduce the despondency of. 

  • To obtain and publish a story, news item, etc. 

  • To collect a passenger. 

How often have the words collect and pick up occurred in a corpus of books? (source: Google Ngram Viewer )