Words that can be formed from the word "different" include these:
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superitussitspitsupsuitsuitsspitsitssitspursepursespriestprieststutortutorspressupupsetupsetsstopstopsstepstepsripripsstripstripstourtourstouristtourists
The letters do not spell many words. The longest word I can identify is the three letter word van. The letters also spell the two letter words ax and an.
The letters can be used to spell the 9 letter word hostility and the 8 letter word hospital. They also spell the 7 letter words hastily, tastily and topsail.
The letters can be used to spell the 7 letter word savarin. It is a yeast cake baked in a ring mold. The letters also spell the 6 letter word varnas. It is any of the four main Hindu social classes. The letters spell several 4 letter words including rain and vain.