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

Crossword clues for Navy ranking abbr.:

CPO: Navy rank (abbr.)
ENS: Navy rank (abbr.)
SNO: Navy ranking abbr.
COMM: Navy rank: Abbr.
ENS: Low-ranking Navy officer: Abbr.
ENS: Rank in the navy: Abbr.
ENS: Parker's rank on "McHale's Navy" (Abbr.)
ENS: Parker's rank in McHale's Navy: Abbr.