proof mark

Fetched 2026-10-26 (cache).

Synonyms: hoof mark, proof arm

Antonyms: hoof mark, proof arm

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|firearms}} A mark stamped on a [[gun]] to show that it has been [[test]]ed successfully.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.