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

Crossword clues for [I need this immediately]:

CAMETOAHEAD: Needed immediate handling
URGENCY: Immediate need
DIRE: Needing immediate attention
URGENT: Needing immediate attention
PRESSINGPROBLEM: It needs immediate attention
ASAP: [I need this immediately]