Those letters will spell heating.
The letters 'isrdefn' unscrambled can spell the following words:FindersFriends
The letters 'talinger' can be unscrambled to spell the following words:AlertingAlteringIntegralRelatingTriangle
The letters 'sheccer' unscrambled spell the word screech.
The letters 'tinoreiicppat' unscrambled spell the word precipitation.
Those letters will spell heating.
The letters 'uafsedrnir' unscrambled spell the word fundraiser.
The letters 'rdugni' unscrambled spell the word during.
The letters 'ytiarf' unscrambled spell the word ratify.
The letters 'anottccr' unscrambled spell the word contract.
The letters 'tepichon' unscrambled spell the word phonetic.
The letters 'tearg' unscrambled can spell the following words:GrateGreat
The letters 'treeatan' unscrambled spell the word anteater.
The letters 'centurr' unscrambled spell the word current.
The letters 'eipylsotmh' unscrambled spell the word polytheism.
The letters 'iregryndreamng' unscrambled spell the word gerrymandering.
The letters 'iillatetphs' unscrambled spell the word philatelist.