A distinction is made in official circles (for example in the speech made at the opening of the exhibition 'Unsere Werte?' at the Leopold-Hoesch-Museum in Düren by Dr. Hildegard Kaluza, Abteilungsleiterin Kultur, Ministerium für Familie, Kinder, Jugend, Kultur und Sport des Landes NRW) between 'Raubkunst' and 'Beutekunst'. The former refers to art seized by the Nazis (legally, under their law) from its rightful owners either directly or under pressure, and in the Lost Art Database is translated as 'Nazi-confiscated art'. 'Beutekunst' is translated as 'looted art' and refers by contrast to those cultural assets which were 'relocated' (to use the euphemism of the Lost Art Database) during the anarchy of the final days of the war and immediately thereafter (i.e. literally stolen, mainly from unoccupied premises, without any legal pretext, Nazi or otherwise).
It is true that one often sees the expression 'Nazi-looted art' to refer to the former category, and this is shortened to 'looted art', but this is not the official term, nor, in actual fact, does it describe what happened: what is described as 'Raubkunst' was not 'looted' in any normal sense of the English word.