The word "Holthaus" is spelled with four syllables and pronounced as /hɒlt-haus/. The first syllable "hol" is pronounced with a short "o" sound, followed by the "t" consonant. The second syllable "thaus" is pronounced with a "th" sound and a long "ow" sound, represented by "au". The spelling of "Holthaus" does not follow the typical English language conventions, as it is likely of Dutch or German origin.