opendeurdag

== Dutch == === Etymology === From open deur +‎ dag. Compare French journée portes ouvertes. === Pronunciation === IPA(key): /ˌoː.pə(n)ˈdøːrˌdɑx/ Hyphenation: open‧deur‧dag === Noun === opendeurdag m (plural opendeurdagen, diminutive opendeurdagje n) open day (casual event where an institution is open for inspection by anyone interested)