What is the meaning of Straight?

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

Direct, undeviating.

Perfectly horizontal or vertical; not diagonal or oblique.

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

Having all cylinders in a single straight line; in-line.

Direct in communication; unevasive, straightforward.

Free from dishonesty; honest, law-abiding.

Serious rather than comedic.

In proper order; as it should be.

In a row, in unbroken sequence; consecutive.

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

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

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

Conventional; mainstream; socially acceptable.

Heterosexual.

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

Related to conventional sexual intercourse.

Not using alcohol, drugs, etc.

Not plus size; thin.

Strait; narrow.

Stretched out; fully extended.

Thorough; utter; unqualified.

Of spirits: undiluted, unmixed; neat.

Sent at a full rate for immediate delivery; being a fast telegram.

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).

OK, all right, fine; in a good state or situation.

On good terms.

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

Directly; without pause, delay or detour.

Continuously; without interruption or pause.

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

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

Five cards in sequence.

A heterosexual.

A normal person; someone in mainstream society.

A cigarette, particularly one containing tobacco instead of marijuana.

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

A cat that has straight ears despite belonging to a breed that often has folded ears.

To straighten.

straight

honest, reliable

driven, determined

heterosexual

clean, drugfree

unbiased, clean, pure

Of a work of art: played straight, not daring to break conventions.

straight, heterosexual

straight, directly

straight (five cards in sequence)

Source: wiktionary.org