subtle difference: crossword clues

Matching Answer
Confidence
NUANCE
95%
AURA
48%
MATTER
20%
PSST
20%
LAG
20%
SAME
20%
AURAS
20%
IRONY
20%
EPACT
20%
SLY
20%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)