aerkastelo

== Esperanto == === Etymology === Calque from a Germanic language, equivalent to aero +‎ kastelo; compare Danish luftkastel, Dutch luchtkasteel, and German Luftschloss. === Pronunciation === IPA(key): /aerkasˈtelo/ Rhymes: -elo Syllabification: a‧er‧kas‧te‧lo === Noun === aerkastelo (accusative singular aerkastelon, plural aerkasteloj, accusative plural aerkastelojn) (idiomatic) castle in the air; pipe dream ==== Synonyms ==== ĥimero ==== See also ==== konstrui kastelojn en aero