reference book for a wordsmith abbr: crossword clues

Matching Answer
Confidence
OED
60%
ROGET
60%
DICT
60%
USAGE
60%
ATLAS
60%
INDEX
60%
IRA
60%
TOME
60%
READ
60%
ALMANAC
60%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)