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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Omegas' counterparts:

ZEDS: Omega counterparts
ZEE: Omega counterpart
ZEES: Omegas' counterparts
ZEE: Omega's counterpart
ZEE: Counterpart to omega
ZEE: Omega's English counterpart