reaction
Armchair is an 8 letter word. The 7th letter is i.
Internet, detainee, detached, arteries, retainer, patented, cuticles, tittered, tottered, tattooed...
resistor
Gulosity is the word you are looking for.The definition of gulosity is "Excessive appetite or greediness".The pronunciation is gu-los-i-ty
Some eight letter words with the seventh letter S are:bigamistchildishdisguiseflourishgoldfishgoodnessinterestlanguishmotoristoptimismprincesssuitcase
towering
abutment
diffuses
maintain
tincture, puncture, punctual, confound
soulmate
caripace