Here are some
Trainer
Silicon
Monitor
Solicit
Genital
Stained
Grained
Denizen
Decimal
Sprites
Prairie
Conical
signals
analyzeantiqueanymoreanytimeencloseendorseenforceenhanceenquireincenseinclineincludeinflateinquireinspireintenseintrudeinvoiceinvolveinverseknucklesnuggleunawareunhinge
Some seven letter words with N as the fifth letter areagainstbalancefriendspartnerqueenlyscienceseventy
Kanya
fern
Doona
sOuNd
Toucan is the word.
connection
Deline
benefitsfanaticalfinishedgeneralsgenerategeneroushonoraryminicampmonogamymonogrammonoxidemonorailrenegaderenewalssinistertenementvenerate
Quarter is one word for "one fourth," and the letter "u" is the second letter in "quater." "n" is the second letter in "one." "o" is the second letter in "fourth." By the way, the three letters make up the word "uno."