Answer:

der

AnswerCrossword Clue
DER".. Rosenkavalier"
DER".. Spiegel"
DER.. Inspector ("The Katzenjammer Kids" character)
DER"... Rosenkavalier"
DER.. Bingle (Crosby)
DERAachen article
DERArticle written tens of thousands of times by Karl Marx?
DERGerman article
DER.. Rosenkavalier
DER... Spiegel
DER.. Alte (Adenauer)
DERThe (Ger.)
DERHesse's ".. Steppenwolf"
DEREtym.
DERArticle in German
DERGerman definite article
DER"... Spiegel" (German newsmagazine)
DERArchitect Ludwig Mies van ... Rohe
DER"... Spiegel" (German news magazine)
DER... Spiegel (German magazine)
DER"... Rosencavalier"
DERArticle written by Marx?
DER... Bingle: Crosby nickname
DER.. Spiegel: German magazine
DER.. Bingle: Crosby nickname
DERArticle written by Luther
DERMarxist article?
DERArticle in Hesse
DERBerlin article
DERSwiss newspaper .. Bund
DEREssen article
DERStrauss's ".. Rosenkavalier"
DER".. Rosenkavalier": Strauss opera
DER.. Bund: Swiss newspaper
DERAugsburger's article
DER"... Rosenkavalier" (Strauss opera)
DERUlm article
DERArticle written by Martin Luther?
DERSimon van ... Meer
DERArticle written by Martin Luther