noun
1. the act of validating; finding or testing the truth of something (Freq. 1)
• Syn: ↑proof, ↑substantiation
• Derivationally related forms: ↑substantiate (for: ↑substantiation), ↑validate
• Hypernyms: ↑determination, ↑finding
• Hyponyms:
2. the cognitive process of establishing a valid proof
• Syn: ↑establishment
• Derivationally related forms: ↑validate, ↑establish (for: ↑establishment)
• Hypernyms: ↑proof, ↑cogent evidence
Useful english dictionary. 2012.