Adjective

(er)

Straight, constant, without interruption.

Straight; not crooked, oblique, or circuitous; leading by the short or shortest way to a point or end.

the most direct route between two buildings

Straightforward; sincere.

* Shakespeare

Be even and direct with me.

Immediate; express; plain; unambiguous.

* John Locke

He nowhere, that I know, says it in direct words.

* Hallam

a direct and avowed interference with elections

In the line of descent; not collateral.

a descendant in the direct line

(astronomy) In the direction of the general planetary motion, or from west to east; in the order of the signs; not retrograde; said of the motion of a celestial body.

Adjective

(er)

(of a statement) Conforming to the actual state of reality or fact; factually correct.

*

, title=(The Celebrity), chapter=8 , passage=The humor of my proposition appealed more strongly to Miss Trevor than I had looked for, and from that time forward she became her old self again;

* {{quote-book, year=1963, author=(Margery Allingham), title= The China Governess, chapter=20

, passage=The story struck the depressingly familiar note with which true stories ring in the tried ears of experienced policemen. No one queried it. It was in the classic pattern of human weakness, mean and embarrassing and sad.}}

* {{quote-magazine, date=2013-07-20, volume=408, issue=8845, magazine=(The Economist)

, title= Old soldiers? , passage=Whether modern, industrial man is less or more warlike than his hunter-gatherer ancestors is impossible to determine.

Conforming to a rule or pattern; exact; accurate.

* Sir (Walter Scott) (1771-1832)

making his eye, foot, and hand keep true time

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

Loyal, faithful.

Genuine.

* {{quote-magazine, date=2012-01

, author=(Henry Petroski), volume=100, issue=1, page=16, magazine=(American Scientist) , title= The Washington Monument , passage=The Washington Monument is often described as an obelisk, and sometimes even as a “true' obelisk,” even though it is not. A ' true obelisk is a monolith, a pylon formed out of a single piece of stone.}}

Legitimate.

Accurate; following a path toward the target.

* {{quote-journal, year=1801, author=Mrs. Cowley

, title=The siege of Acre, journal=The British Critic, volume=17-18?, page=521 , passage=Whate'er the weapon, still his aim was true , Nor e'er in vain the fatal bullet flew.}}

* {{quote-book, year=2008, author=Carl Hiaasen

, title=The downhill lie: a hacker's return to a ruinous sport, page=188 , passage=I held my breath and struck the ball. My aim was true , but I didn't give the damn thing enough gas. It died three feet from the cup.}}

* 1990 , William W. S. Wei, Time Series Analysis , ISBN 0201159112, page 8:

Let $Z\_t$ be twice the value of a true die shown on the $t$-th toss.