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

Crossword clues for Grunt's grub 4 letters:

MRES: Grunts' grub
MESS: Grunt's grub
KRATIONS: Grunts' grub
MESSMATES: Grub-eating grunts
MESSHALL: Where grunts get grub
MRE: Grub for grunts, briefly