The word "astarloza" is a Basque surname that can be challenging to spell, especially for non-native speakers. It's pronounced "ah-stah-ROH-sah," with the stress on the second syllable. The sound "z" at the end is pronounced as "s" in most Basque words. To spell this word correctly, it's essential to remember the order of letters "a, s, t, a, r, l, o, z, a." Practicing the IPA phonetic transcription can help improve pronunciation and spelling of this word.