straight vs true

straight

verb
  • To straighten. 

adj
  • Direct, undeviating. 

  • Describing the bat as held so as not to incline to either side; on, or near a line running between the two wickets. 

  • Making no exceptions or deviations in one's support of the organization and candidates of a political party. 

  • Occurring between people of opposite sex (sometimes, but not always, specifically between heterosexual people). 

  • Strait; narrow. 

  • Conventional; mainstream; socially acceptable. 

  • Thorough; utter; unqualified. 

  • Of spirits: undiluted, unmixed; neat. 

  • Concerning the property allowing the parallel transport of vectors along a course that keeps tangent vectors remain as such throughout that course (a course which is straight, a straight curve, is a geodesic). 

  • Not plus size; thin. 

  • In proper order; as it should be. 

  • Heterosexual. 

  • Serious rather than comedic. 

  • Containing the names of all the regularly nominated candidates of a single party and no others. 

  • Related to conventional sexual intercourse. 

  • Free from dishonesty; honest, law-abiding. 

  • Not crooked or bent; having a constant direction throughout its length. 

  • Perfectly horizontal or vertical; not diagonal or oblique. 

  • In a row, in unbroken sequence; consecutive. 

  • Not using alcohol, drugs, etc. 

  • Describing the sets in a match of which the winner did not lose a single set. 

  • Direct in communication; unevasive, straightforward. 

noun
  • A chiropractor who relies solely on spinal adjustment, with no other treatments. 

  • Something that is not crooked or bent such as a part of a road or track. 

  • Five cards in sequence. 

  • A cigarette, particularly one containing tobacco instead of marijuana. 

  • A heterosexual. 

  • A normal person; someone in mainstream society. 

adv
  • Directly; without pause, delay or detour. 

  • Continuously; without interruption or pause. 

  • Of speech or information, without prevarication or holding back; directly; straightforwardly; plainly. 

  • Of a direction relative to the subject, precisely; as if following a direct line. 

true

verb
  • To straighten (of something that is supposed to be straight). 

  • To make even, level, symmetrical, or accurate, align; adjust. 

adj
  • As an ellipsis of "(while) it is true (that)", used to start a sentence 

  • Conforming to a rule or pattern; exact; accurate. 

  • Genuine; legitimate, valid. 

  • Correctly aligned or calibrated, without deviation. 

  • based on actual historical events. 

  • Conforming to the actual state of reality or fact; factually correct. 

  • Used in the designation of group of species, or sometimes a single species, to indicate that it belongs to the clade its common name (which may be more broadly scoped in common speech) is restricted to in technical speech, or to distinguish it from a similar species, the latter of which may be called false. 

  • Fair, unbiased, not loaded. 

  • Of the state in Boolean logic that indicates an affirmative or positive result. 

  • Loyal, faithful. 

  • Accurate; following a path toward the target. 

adv
  • Accurately. 

noun
  • The state of being in alignment. 

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