rattento practise sabotage against

Supercalifragilisticexpialidocious - extraordinary

Touchstone:  a hard black stone, such as jasper or basalt, formerly used to test the quality of gold or silver by comparing the streak left on the stone by one of these metals with that of a standard alloy.

an excellent quality or example that is used to test the excellence or genuineness of others.

Unequivocal - (adj)leaving no doubt : clear, unambiguous

"an unequivocal answer

Verisimilar: appearing to be true or real; probable.

wergildfine paid by the family of the murderer to the family of the murder victim

Xenic - something that Containing an unidentified organism

Yardstick:  a graduated measuring stick one yard in length

a test, standard, or model used in measurement, comparison, or judgment