This is the 9220th most frequent German word.
mahler
In German, "Maler" means "painter" (artist). If you meant "Mahler," it is a surname, notably of the composer Gustav Mahler.
In this sentence, 'Maler' refers to a person whose profession or art is painting.
Der Maler arbeitete an einem neuen Meisterwerk.
The painter was working on a new masterpiece.
Here, 'Mahler' is a variant spelling, used poetically or contextually, of 'Maler,' meaning an artist or painter.
Die Stadt hat einen neuen Mahler beauftragt, das Wandbild zu restaurieren.
The city has commissioned a new artist to restore the mural.
In this example, 'Mahler' is a proper noun, referring to the Austrian composer Gustav Mahler.