Pointer and Proof

pointer

A mark to indicate a direction or relation.
- synonyms: arrow
An indicator as on a dial.
Computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving it allows the user to point to commands or screen positions.
- synonyms: cursor
A strong slender smooth-haired dog of Spanish origin having a white coat with brown or black patches; scents out and points to game.
- synonyms: Spanish pointer

(n.) The two stars (Merak and Dubhe) in the Great Bear, the line between which points nearly in the direction of the north star.
(n.) One who or that which, points.
(n.) The hand of a timepiece.
(n.) Diagonal braces sometimes fixed across the hold.
(n.) One of a breed of dogs trained to stop at scent of game, and with the nose point it out to sportsmen.

Webster's Revised Unabridged Dictionary

proof

Any factual evidence that helps to establish the truth of something.
- usage: "if you have any proof for what you say, now is the time to produce it"
- synonyms: cogent evidence
A formal series of statements showing that if one thing is true something else necessarily follows from it.
A measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume. )
Printing) an impression made to check for errors.
- synonyms: test copy, trial impression
A trial photographic print from a negative.
The act of validating; finding or testing the truth of something.
- synonyms: validation, substantiation

Make or take a proof of, such as a photographic negative, an etching, or typeset.
Knead to reach proper lightness.
- usage: "proof dough"
Read for errors.
- usage: "I should proofread my manuscripts"
- synonyms: proofread
Activate by mixing with water and sometimes sugar or milk.
- usage: "proof yeast"
Make resistant (to harm. )
- usage: "proof the materials against shrinking in the dryer"

Used in combination or as a suffix. ( able to withstand)
- usage: "temptation-proof"; "childproof locks"

(a.) Being of a certain standard as to strength; -- said of alcoholic liquors.
(n.) Any effort, process or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.
(n.) That degree of evidence which convinces the mind of any truth or fact, and produces belief; a test by facts or arguments that induce or tend to induce, certainty of the judgment; conclusive evidence; demonstration.
(v.t.) Armor of excellent or tried quality, and deemed impenetrable; properly, armor of proof.
(n.) A process for testing the accuracy of an operation performed. Cf. Prove, v. t., 5.
(a.) Firm or successful in resisting; as, proof against harm; waterproof; bombproof.
(n.) The quality or state of having been proved or tried; firmness or hardness that resists impression or does not yield to force; impenetrability of physical bodies.
(a.) Used in proving or testing; as, a proof load or proof charge.
(n.) A trial impression, as from type, taken for correction or examination; -- called also proof sheet.
(n.) Firmness of mind; stability not to be shaken.

Webster's Revised Unabridged Dictionary