Gelukkige Onafhankelijkheidsdag is the word for Happy Independence Day. This is translation from English to Dutch.
Happy independence day?
You can say "Hau'oli La Ku'oko'a" which means Happy Independence Day in Hawaiian.
boha maij dihcis
'Le jour heureux d'indépendance'
Happy Christmas - vrolijk kerstfeest
In Dutch, you say "Vrolijk Sint Nicolaas!" to wish someone a Happy St. Nicholas Day. The celebration typically takes place on December 5th, known as Sinterklaasavond. It's a festive time filled with gift-giving and various traditional customs.
Fröhlichen vierten Juli! or Fröhlichen Unabhängigkeitstag (=independence day)
Vrolijk Halloween
I would say: 'Happy thanksgiving'. Because Thanksgiving is an American holiday, not a Dutch, there is no specific translation for it.
Maligayang Araw ng Kalayaan
Multiple reasons; it comes out of the mouth smother, to distinguish between other countries' Independence Days, and it sounds more American.
'Happy birthday' is 'fijne verjaardag' in Dutch.