gapers
gasper
grapes
grease
pagers
regaps
repage
repegs
bonus - 7 letter words
graspee
presage
repages
Bit of a stretch on some but that's all I can come up with
laxity
There are no other nine letter words that can be made with the letters in 'valentine'; some shorter words that can be made with those letters are:aailalealienaliveanantanteanvilatateaveeateateneaveeelelanelateeliteenlivenentaileveeveneventevilIininaneinletinninnateinventitlalainlanelatelealeanleaveleavenlenientletlielienlinelinenlintlitlivelivennailnaivenaivetenativenavelneatneatenneenetnilninenittailtaletanteatealteeteententietiltiletintinevalevaletvanvanevatveilveinvenalvenialventviavialvievilevineviralvital
There are no eight-letter words using LZNUEOT and another letter. Seven letter words made from 8 letters would be toluene or outline.There are 15 English words that contain all the letters LZNUEOTconceptualizeconceptualizedconceptualizesconceptualizingequalizationinstitutionalizeinstitutionalizedinstitutionalizesneutralizationpulverizationrevolutionizerevolutionizedrevolutionizesrevolutionizingsecularization
foiled
No words can be made using all of the letters of 'Sophie'.Some words that can be made using some of the letters are:HopesPoiseHipsHopeHopsPiesPosePoshShipShoeShopHipHisHopPieSheSip
There are no English words that contain all those letters, but here are some eight-letter words: alehouse, hamulose
No words can be made using all of the letters. Some words using some of the letters are:RodentDetoxDroneGonerNotedTonedTonerTrendDentDoneDoteGentGoneNerdNextNodeNoteOxenRentRodeTendTongToreTornTrodDenDoeDogDotEgoEndGetGotNetNodNotOdeOneOreRexRodTenTon
All I could find were Duck, muck, and yuck.
You can make one other word using all of the letters of 'cure': ecru.Other words that can be made using some of the letters are:CruCueCurEcuRecRueErRe
"Reverse" can be made with all the letters from reserve.
gradate
There are no words in English that use all eight letters but words you can make with 'raavcnva' are:aanarccancarcaravanranvan