whetstone, touchstone, kidney stone; cheek

astute, crafty, clever, shrewd; adjustment, tweaking, tightening; assay (of precious metals); touchstone (of a jewler); standard, criterion

test, trial, temptation

to try, test, attempt, tempt (ازمويل)

to attempt, try; to experiment, test

attempt, try; experiment, test

to test, try, tempt

scales, standard, criterion, level

landmark, marker, criterion, index

standard, criteria, criterion, level

appraiser; factor, criterion