These are all from SOWPODS, the Scrabble dictionary:
aiver
bravi
diver
drive
ervil
fiver
giver
hiver
invar
ivory
jiver
liver
livor
livre
mirvs
privy
ravin
reive
revie
rieve
rival
rivas
rived
rivel
riven
river
rives
rivet
rivos
siver
vaire
vairs
vairy
varia
varix
vezir
vicar
viers
vigor
viler
viner
viper
viral
vired
vireo
vires
virga
virge
virid
virls
virtu
virus
visor
viver
vizir
vizor
vraic
vrils
wiver
yrivd
5 letter words that contain FOR:forceforgeforgoformsforum
Some words that contain the letters 'argo' are:argonArgonautargosycargoembargoescargotgargoylejargon
Some 5 letter words that contain the letter Z are azido, azine, azons, bezel, and blaze. Some more words with a Z in them that have 5 letters are bazoo, booze, ditzy, and glaze.
Some words that begin and end with the same letter and contain CA are:abracadabraacaciaacademiaalpacabicarbcarcinogenicdecaffeinateddecanteddecapoddecayeddedicateddefecateddesiccateddiscarddislocatedduplicatededucateencapsulateencaseequivocateeradicateescalateescapadeescapeescaroleevocativeexcavateexcommunicateexplicateextricatelackadaisicalliturgicallocallogicallogisticallyricalmacadamminicamnotificationnullificationscabiesscalesscallopstelecasttomcattoxicanttypecast
Words that contain the letter Q:acquireacquittedequalequalityequitableesquireinquirequalmquandaryqueasyqueenqueerquestionquestionablequickquillquotationQuransquashsquirmsquish
5 letter words that contain FOR:forceforgeforgoformsforum
There are no English words that contain all those letters, but here are some eight-letter words: alehouse, hamulose
Some words that contain the letters 'argo' are:argonArgonautargosycargoembargoescargotgargoylejargon
Some words that contain the letters TOY are:attorneyboycottfrostymostlyoysterroyaltysportystorytonytyphoonworthyyouth
Some six letter words that contain the letters 'ule' are:ampuleamuletfouledhauledmauled
Some 5 letter words that contain the letter Z are azido, azine, azons, bezel, and blaze. Some more words with a Z in them that have 5 letters are bazoo, booze, ditzy, and glaze.
Some words that have the letters ME twice in the middle are:amendmentcommencementdismembermentmeantimemeasurementmementomerrimentmesmerisemetronomesometimesummertime
Some words that begin and end with the same letter and contain CA are:abracadabraacaciaacademiaalpacabicarbcarcinogenicdecaffeinateddecanteddecapoddecayeddedicateddefecateddesiccateddiscarddislocatedduplicatededucateencapsulateencaseequivocateeradicateescalateescapadeescapeescaroleevocativeexcavateexcommunicateexplicateextricatelackadaisicalliturgicallocallogicallogisticallyricalmacadamminicamnotificationnullificationscabiesscalesscallopstelecasttomcattoxicanttypecast
Words that contain the letter Q:acquireacquittedequalequalityequitableesquireinquirequalmquandaryqueasyqueenqueerquestionquestionablequickquillquotationQuransquashsquirmsquish
Buckle, Bucket, Ruckus, Sucker, Bucked, Flukes...
Some words that contain the letters FER are:aquiferbufferchauffeurcofferconferconiferdeferdiffereffervescentfermentfernferretferryfervorfertilegolferinferinferiorinfernointerferonloaferLuciferofferpilferpreferpufferreferrefereesuffersurfertransferwafer
No English words contain all of those letters.Here are a few words you can make with some of the letters:4-letter wordsanti, hant, hint, hwan, tain, than, thaw, thin, twin, wain, wait, want, what, whin, whit, with5-letter wordstwain, witan