file vs train

file

noun
  • A small detachment of soldiers. 

  • 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. 

  • Course of thought; thread of narration. 

  • A roll or list. 

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

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. 

train

noun
  • The men and vehicles following an army, which carry artillery and other equipment for battle or siege. 

  • A long, heavy sleigh used in Canada for the transportation of merchandise, wood, etc. 

  • A set of interconnected mechanical parts which operate each other in sequence. 

  • A transient trail of glowing ions behind a large meteor as it falls through the atmosphere or accompanying a comet as it nears the sun; tail. 

  • A group of people following an important figure such as a king or noble; a retinue, a group of retainers. 

  • A group or class of people. 

  • A sequence of events or ideas which are interconnected; a course or procedure of something. 

  • A trail or line of something, especially gunpowder. 

  • A series of specified vehicles (originally tramcars in a mine as usual, later especially railway carriages) coupled together. 

  • The tail of a bird. 

  • A mechanical (traditionally steam-powered, now typically diesel or electrical) vehicle carrying a large number of passengers and freight along a designated track or path; a line of connected cars or carriages considered overall as a mode of transport; (as uncountable noun) rail or road travel. 

  • The elongated body or form of something narrow and winding, such as the course of a river or the body of a snake. 

  • An act wherein series of men line up and then penetrate a person, especially as a form of gang rape. 

  • A set of things, events, or circumstances that follow after or as a consequence; aftermath, wake. 

  • A series of electrical pulses. 

  • The elongated back portion of a dress or skirt (or an ornamental piece of material added to similar effect), which drags along the ground. 

  • A group of animals, vehicles, or people that follow one another in a line, such as a wagon train; a caravan or procession. 

  • A software release schedule. 

verb
  • To encourage (a plant or branch) to grow in a particular direction or shape, usually by pruning and bending. 

  • To improve one's fitness. 

  • To create a trainer for; to apply cheats to (a game). 

  • To teach and form (someone) by practice; to educate (someone). 

  • To proceed in sequence. 

  • To move (a gun) laterally so that it points in a different direction. 

  • To practice an ability. 

  • To trace (a lode or any mineral appearance) to its head. 

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