appointment vs one-to-one

appointment

noun
  • An arrangement between people to meet; an engagement. 

  • An honorary part or exercise, as an oration, etc., at a public exhibition of a college. 

  • Equipment, furniture. 

  • Stipulation; agreement; the act of fixing by mutual agreement. 

  • The state of being appointed to a service or office; an office to which one is appointed 

  • Decree; direction; established order or constitution. 

  • The assignment of a person by an official to perform a duty, such as a presidential appointment of a judge to a court. 

  • The act of appointing a person to hold an office or to have a position of trust 

  • The exercise of the power of designating (under a power of appointment) a person to enjoy an estate or other specific property; also, the instrument by which the designation is made. 

one-to-one

noun
  • A personal relationship between two people. 

adj
  • Matching each member of one set with exactly one member of another set. 

  • Injective, being an injection: having the property that no two elements of the domain are mapped to the same image. 

  • Involving direct communication between two people. 

How often have the words appointment and one-to-one occurred in a corpus of books? (source: Google Ngram Viewer )