rear vs train

rear

verb
  • To bring up to maturity, as offspring; to educate; to instruct; to foster. 

  • To construct by building; to set up 

  • To rise up on the hind legs 

  • To get angry. 

  • To raise spiritually; to lift up; to elevate morally. 

  • To move; stir. 

  • To place in the rear; to secure the rear of. 

  • To sodomize (perform anal sex) 

  • To breed and raise. 

  • To carve. 

  • To rise high above, tower above. 

  • To raise physically or metaphorically; to lift up; to cause to rise, to elevate. 

adj
  • (of meats) Rare. 

  • (of eggs) Underdone; nearly raw. 

  • Being behind, or in the hindmost part; hindmost 

adv
  • early; soon 

noun
  • Specifically, the part of an army or fleet which comes last, or is stationed behind the rest. 

  • The buttocks or bottom. 

  • The back or hindmost part; that which is behind, or last in order. 

train

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

  • 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 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. 

noun
  • 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. 

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

  • 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. 

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