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

Crossword clues for Hidden obstacle 4 letters:

SNAG: Hidden obstacle
TRAP: Hidden obstacle
SNAGS: Hidden obstacles
TRAPS: Hidden obstacles
PITFALL: Hidden obstacle
LANGUAGEBARRIER: Foreigner's obstacle ... or a hint to hidden words in 17-, 29-, 37- and 49-Across