dichotomy vs partition

dichotomy

noun
  • A separation or division into two; a distinction that results in such a division. 

  • The division of a genus into two species; a division into two subordinate parts. 

  • A phase of the moon when it appears half lit and half dark, as at the quadratures. 

  • Such a division involving apparently incompatible or opposite principles; a duality. 

  • The division of a class into two disjoint subclasses that are together comprehensive, as the division of man into white and not white. 

  • Division and subdivision; bifurcation, as of a stem of a plant or a vein of the body into two parts as it proceeds from its origin; often successive. 

partition

noun
  • That which divides or separates; that by which different things, or distinct parts of the same thing, are separated; boundary; dividing line or space. 

  • A vertical structure that divides a room. 

  • An approach to division in which one asks what the size of each part is, rather than (as in quotition) how many parts there are. 

  • A musical score. 

  • An action which divides a thing into parts, or separates one thing from another. 

  • A part of something that has been divided. 

  • A part divided off by walls; an apartment; a compartment. 

  • The severance of common or undivided interests, particularly in real estate. It may be effected by consent of parties, or by compulsion of law. 

  • The division of a territory into two or more autonomous ones. 

  • A division of a database or one of its constituting elements such as tables into separate independent parts. 

  • A section of a hard disk separately formatted. 

  • A collection of non-empty, disjoint subsets of a set whose union is the set itself (i.e. all elements of the set are contained in exactly one of the subsets). 

verb
  • To divide something into parts, sections or shares. 

  • To divide a region or country into two or more territories with separate political status. 

  • To separate or divide a room by a partition (ex. a wall), often use with off. 

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