"Battle" is one of them.
ballooningbottleneckbottomlessbuttercupsbuttonholecellphonescorrelatescorrugatescottontailcorrectioncorruptiondifferencedissimilardissonancehammerheadlitterbugsmissionarypassagewaypatterningsaddlebagssettlementwallpaperssleepwalkssweetheart
Tree
Some six letter words with the same first and fourth letter are:attainbabblebarberchachadeadlydoodaddoodleeateryfluffygarglegooglemammalopposepepperpuppetramrodseasonteethevelvetzigzag
saddlesettlesallowcheesecattlecuddleladdielassieladderletterbattleballadbatterbannerbetterbuttermattermiddlemellowmutterpatterpaddleputterpillowpelletpalletpuddletallowtellerhappenhollowfellowfollowfallowfillerfitterfatterkettlekittengutter
butterfly
ballooningbottleneckbottomlessbuttercupsbuttonholecellphonescorrelatescorrugatescottontailcorrectioncorruptiondifferencedissimilardissonancehammerheadlitterbugsmissionarypassagewaypatterningsaddlebagssettlementwallpaperssleepwalkssweetheart
Tree
bunnybullybattybaggyberrybossybuddycarrydollyfunnygullyhillyhurryjellyjollymarrymessynuttypuppypeppyrallyruddysillysunny
Some six letter words with the same first and fourth letter are:attainbabblebarberchachadeadlydoodaddoodleeateryfluffygarglegooglemammalopposepepperpuppetramrodseasonteethevelvetzigzag
saddlesettlesallowcheesecattlecuddleladdielassieladderletterbattleballadbatterbannerbetterbuttermattermiddlemellowmutterpatterpaddleputterpillowpelletpalletpuddletallowtellerhappenhollowfellowfollowfallowfillerfitterfatterkettlekittengutter
butterfly
diffuses
benefitsfanaticalfinishedgeneralsgenerategeneroushonoraryminicampmonogamymonogrammonoxidemonorailrenegaderenewalssinistertenementvenerate
dividing
reversed
ponys
array