national holiday na·tio·nal·holiday uncommon noun 1. authorized by law and limiting work or official business Synonymslegal holidaynational holiday Related words Broader terms holiday Narrower terms New Year's DayMartin Luther King Jr's BirthdayPresidents' DayMemorial DayIndependence DayLabor DayColumbus DayChristmas WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
