› informal disapproving → tight-fisted
› old-fashioned informal having drunk too much alcohol: Jim, you're tight!
› informal If two people are tight, they know each other very well and like each other a lot: The two of them were pretty tight at school.
› GOVERNMENT, LAW controlled very carefully: tight controls/security/restrictions The talks were held amid tight security in London.
› FINANCE, MANAGEMENT if money or time is tight, there is only just enough of it: Finances are tight and no university has spare cash.tight budget/deadline/schedule We're working to a very tight schedule.