proof /proof/

1. Something which proves or establishes the truth of anything
2. The fact, act or process of proving or showing to be true
3. Demonstration
4. Evidence that convinces the mind and goes toward determining the decision of a court
5. An instrument of evidence in documentary form (law)
6. The taking of evidence by a judge upon an issue framed in pleading (Scots law)
7. A trial before a judge without a jury (Scots law)
8. A checking operation (mathematics)
9. A test
10. Experience (obsolete)
11. Issue, outcome or upshot (obsolete)
12. Testing, esp of guns
13. Ability to stand a test
14. Invulnerability
15. Impenetrability
16. Armour of proof (see below)
17. A standard strength of spirit (alcohol and water of relative density 12/13 at 51ºF, ie 49.28 per cent of alcohol by weight)
18. An impression taken for correction (printing)
19. An early impression of an engraving
20. A coin, intended for display, etc rather than circulation, struck from polished dies on polished blanks (also proof coin)
21. The first print from a negative (photography)

1. Impervious
2. Invulnerable
3. Of standard strength (of alcohol)

1. To make impervious, esp to water
2. To take a proof of
3. To test

Denoting (to make) able to withstand or resist, as in waterproof, childproof, weatherproof, etc

proofˈing noun

1. The process of making waterproof, gasproof, etc
2. Material used for this purpose

proofˈless adjective

Lacking proof or evidence

• clear felling
• clear-headed
• clear-headedly
• clearing
• clearing bank
• clearing banks
• clearing house
• clearing houses
• clearing-nut
• clearing-nuts
• clearings
• clearing sale
• clearing sales
• clearly
• clearness
• clearnesses
• clear-obscure
• clear off
• clear one's throat
• clear out
• clear-out
• clears
• clear-sighted
• clear-sightedly
• clear-sightedness