deluxe

US: /dəˈlʌks, -ˈlʊks/ ,(də luks′, -lŏŏks′)

WordReference Random House Learner's Dictionary of American English © 2025

de•luxe or de luxe /dəˈlʌks, -ˈlʊks/   adj. [before a noun]

1. splendid;
   luxurious:
   a deluxe hotel.

WordReference Random House Unabridged Dictionary of American English © 2025

de•luxe  (də luks′, -lŏŏks′), adj. 

1. of special elegance, sumptuousness, or fineness;
   high or highest in quality, luxury, etc.:
   a deluxe hotel; a deluxe edition of Shakespeare bound in leather..

adv. 

2. in a luxurious or sumptuous manner:
   We always travel deluxe.

Also, de luxe′. 

• French de luxe of luxury
• 1810–20

Collins Concise English Dictionary © HarperCollins Publishers::

de luxe, deluxe / dəˈlʌks ˈlʊks/ adjective

1. (esp of products, articles for sale, etc) rich, elegant, or sumptuous; superior in quality, number of accessories, etc: the de luxe model of a car

adverb

1. in a luxurious manner

Etymology: 19th Century: from French, literally: of luxury