letter after pi: crossword clues

Matching Answer
Confidence
RHO
95%
ETA
60%
OMICRON
60%
PSI
60%
PHI
60%
ESS
60%
TAU
60%
OMEGA
60%
THETA
60%
AREA
60%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)