parallel vs reverse

parallel

verb
  • To construct or place something parallel to something else. 

  • To produce or adduce as a parallel. 

  • To compare or liken something to something else. 

  • To equal; to match; to correspond to. 

  • Of a process etc: To be analogous to something else. 

  • To make to conform to something else in character, motive, aim, etc. 

  • Of a path etc: To be parallel to something else. 

adj
  • Having the same overall direction; the comparison is indicated with "to". 

  • Either not intersecting, or coinciding. 

  • Equally distant from one another at all points. 

  • Involving the processing of multiple tasks at the same time. 

noun
  • A character consisting of two parallel vertical lines, used in the text to direct attention to a similarly marked note in the margin or at the foot of a page. 

  • A line of latitude. 

  • One of a set of parallel lines. 

  • One of a series of long trenches constructed before a besieged fortress, by the besieging force, as a cover for troops supporting the attacking batteries. They are roughly parallel to the line of outer defenses of the fortress. 

  • Direction conformable to that of another line. 

  • An arrangement of electrical components such that a current flows along two or more paths; see in parallel. 

  • Something identical or similar in essential respects. 

  • A comparison made; elaborate tracing of similarity. 

adv
  • With a parallel relationship. 

reverse

verb
  • To turn something around so that it faces the opposite direction or runs in the opposite sequence. 

  • To transpose the positions of two things. 

  • To engage reverse thrust on (an engine). 

  • To cause a mechanism or a vehicle to operate or move in the opposite direction to normal. 

  • To revoke a law, or to change a decision into its opposite. 

  • To change totally; to alter to the opposite. 

  • To place (a set of points) in the reverse position. 

  • To change the direction of a reaction such that the products become the reactants and vice-versa. 

  • To move from the normal position to the reverse position. 

  • To overthrow; to subvert. 

  • To turn something inside out or upside down. 

adj
  • Pertaining to engines, vehicle movement etc. moving in a direction opposite to the usual direction. 

  • Turned upside down; greatly disturbed. 

  • In which cDNA synthetization is obtained from an RNA template. 

  • Reversed. 

  • Opposite, contrary; going in the opposite direction. 

  • To be in the non-default position; to be set for the lesser-used route. 

noun
  • The act of going backwards; a reversal. 

  • A thrust in fencing made with a backward turn of the hand; a backhanded stroke. 

  • The opposite of something. 

  • The gear setting of an automobile that makes it travel backwards. 

  • The tails side of a coin, or the side of a medal or badge that is opposite the obverse. 

  • A turn or fold made in bandaging, by which the direction of the bandage is changed. 

  • A piece of misfortune; a setback. 

  • The side of something facing away from a viewer, or from what is considered the front; the other side. 

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