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

Crossword clues for Access to them is restricted:

INTRANET: Means of electronic communication with restricted access
ROPEDOFF: With restricted access
ENCODE: Restrict access to, in a way
DONOTENTER: Restricted-access warning
NOENTRY: Restricted access sign
NOGOAREAS: Access to them is restricted
LOGGINGINTO: Accessing, as a password-restricted website