Webster's Revised Unabridged Dictionary · 1913

Scratch

Scratch , transitive verb

[Old English cracchen (perhaps influenced by Old English scratten to scratch); compare Old High German chrazzōn, German kratzen, OD. kratsen, kretsen, Dutch krassen, Swedish kratsa to scrape, kratta to rake, to scratch, Danish kradse to scratch, to scrape, Icelandic krota to engrave. Compare Grate to rub.]

1.
To rub and tear or mark the surface of with something sharp or ragged; to scrape, roughen, or wound slightly by drawing something pointed or rough across, as the claws, the nails, a pin, or the like.
Small sand-colored stones, so hard as to scratch glass. — Grew
Be mindful, when invention fails, To scratch your head, and bite your nails. — Swift
2.
To write or draw hastily or awkwardly.
Scratch out a pamphlet. — Swift
3.
To cancel by drawing one or more lines through, as the name of a candidate upon a ballot, or of a horse in a list; hence, to erase; to efface; -- often with out.
4.
To dig or excavate with the claws; as, some animals scratch holes, in which they burrow.
Collocations (1)
To scratch a ticket , to cancel one or more names of candidates on a party ballot; to refuse to vote the party ticket in its entirety. [United States]

Scratch , intransitive verb

1.
To use the claws or nails in tearing or in digging; to make scratches.
Dull, tame things,... that will neither bite nor scratch. — Dr. H. More
2.
(Billiards) To score, not by skillful play but by some fortunate chance of the game. [Cant, United States]

Scratch , noun

1.
A break in the surface of a thing made by scratching, or by rubbing with anything pointed or rough; a slight wound, mark, furrow, or incision.
The coarse file... makes deep scratches in the work. — Moxon
These nails with scratches deform my breast. — Prior
God forbid a shallow scratch should drive The prince of Wales from such a field as this. — Shakespeare
2.
(Pugilistic Matches) A line across the prize ring; up to which boxers are brought when they join fight; hence, test, trial, or proof of courage; as, to bring to the scratch; to come up to the scratch. [Cant] — Grose
3.
(Farriery) Minute, but tender and troublesome, excoriations, covered with scabs, upon the heels of horses which have been used where it is very wet or muddy. — Law (Farmer's Veter. Adviser)
4.
A kind of wig covering only a portion of the head.
5.
(a) (Billiards) A shot which scores by chance and not as intended by the player; a fluke.
(b)
(Billiards) a shot which results in a penalty, such as dropping the cue ball in a pocket without hitting another ball. [Cant, United States]
6.
In various sports, the line from which the start is made, except in the case of contestants receiving a distance handicap.
Collocations (4)
Scratch cradle , See Cratch cradle, under Cratch.
Scratch grass (Botany) , a climbing knotweed (Polygonum sagittatum) with a square stem beset with fine recurved prickles along the angles.
Scratch wig , Same as Scratch, 4, above. — Thackeray
start from scratch , to start (again) from the very beginning; also, to start without resources.

Scratch , adjective

Made, done, or happening by chance; arranged with little or no preparation; determined by circumstances; haphazard; as, a scratch team; a scratch crew for a boat race; a scratch shot in billiards. [Slang]
Collocations (1)
Scratch race , one without restrictions regarding the entrance of competitors; also, one for which the competitors are chosen by lot.