convent
The last letter is N. Three letters before the last letter is E. Two letters before the E is A. The answer is the A.
Square ... although the third letter is 'u'
horse
Oh, brother.
keyhole
A seven letter animal called a Panther can have its last four letters removed to form the word PAN, which can be used for cooking!
The Alamo
captain
empty
Some seven letter words with U as the sixth letter are;alumnusamateuramorousantiqueanxiousapplaudarduousbalefulbaroquebashfulbathtubbiliousbreakupbrusquebulbouscadmiumcalciumcallouscarefulcoconutcontourcookoutcopiouscraniumcumuluscuriousdecorumdefrauddevaluedeviousdolefuldubiousdutifuleardrumearplugenviousfalloutfatefulfatiguefatuousfearfulferrousfibrousfulcrumfuriousgaseousglamourgleefulgrownuphaircuthalibuthandfulhandgunhandouthangoutharbourharmfuligneousimpetusimpiousingenueiridiumisthmusjealousketchupladybugleprousliqueurlithiumlockoutlookoutmacaquemasseurmaximummindfulminibusminimummodicumnervousnitrousnostrumnoxiousnucleusobliqueobviousoctopusodorousominousomnibusonerousopossumoptimumoverdueoverrunpainfulpapyrusparlourphalluspiteouspitifulplayfulpompouspremiumpronounquantumraucousregroupreissueresiduerestfulretinuerevenuerhodiumrhombusriotousrosebudroundupruinoussanctumsaviourseriousshakeuptenuoustetanusturnouturaniumvacuousvariousviciousviscouswakefulwashoutwashtubwillfulwiseguywishfulwistfulwithoutwoodcutworkoutzealouszestful
elevens
avenues