class vs file

class

noun
  • A series of lessons covering a single subject. 

  • One of the sections into which a Methodist church or congregation is divided, supervised by a class leader. 

  • A group of students in a regularly scheduled meeting with a teacher. 

  • A rank in the classification of organisms, below phylum and above order; a taxon of that rank. 

  • A grouping of data values in an interval, often used for computation of a frequency distribution. 

  • A group of students who commenced or completed their education during a particular year. A school class. 

  • A collection of sets definable by a shared property. 

  • A group, collection, category or set sharing characteristics or attributes. 

  • Best of its kind. 

  • A set of objects having the same behavior (but typically differing in state), or a template defining such a set in terms of its common properties, functions, etc. 

  • The division of society into classes. 

  • Admirable behavior; elegance. 

  • A category of seats in an airplane, train or other means of mass transportation. 

  • A group of people subject to be conscripted in the same military draft, or more narrowly those persons actually conscripted in a particular draft. 

  • A social grouping, based on job, wealth, etc. In Britain, society is commonly split into three main classes: upper class, middle class and working class. 

adj
  • great; fabulous 

verb
  • To assign to a class; to classify. 

  • To be grouped or classed. 

  • To divide into classes, as students; to form into, or place in, a class or classes. 

file

noun
  • Course of thought; thread of narration. 

  • A column of people one behind another, whether "single file" or in a grid pattern. 

  • A collection of papers collated and archived together. 

  • one of the eight vertical lines of squares on a chessboard (i.e., those identified by a letter). 

  • A hand tool consisting of a handle to which a block of coarse metal is attached, and used for removing sharp edges or for cutting, especially through metal. 

  • A row of modular kitchen units and a countertop, consisting of cabinets and appliances below (dishwasher) and next to (stove/cooker) a countertop. 

  • The primary item on the menu bar, containing commands such as open, save, print, etc. 

  • A roll or list. 

  • An aggregation of data on a storage device, identified by a name. 

  • A small detachment of soldiers. 

verb
  • To submit a formal request to some office. 

  • To corrupt. 

  • To commit (official papers) to some office. 

  • To store a file (aggregation of data) on a storage medium such as a disc or another computer. 

  • To place in an archive in a logical place and order. 

  • To smooth, grind, or cut with a file. 

  • To move in a file. 

  • To submit (a story) to a newspaper or similar publication. 

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