The word "olsten" may seem straightforward to spell, but its pronunciation can be a bit tricky. In IPA phonetic transcription, the word is written as /ˈɑːlstɛn/. This means that the first syllable, "ol," is pronounced with a long "o" sound as in "toe." The second syllable, "sten," is pronounced with the vowel sound in "dress" and the "t" and "n" sounds are blended together. So, if you want to spell "olsten" correctly, remember to include both the long "o" and the distinct "st" sound.