Thermometer
Yes. Es (noun) letter S.
121 ES is eleven squared
The word antidisestablishmentarianism has eleven syllables. (an-ti-dis-es-tab-lish-men-tar-i-an-ism)
Envelope
eagles
Some eight letter words that have three Es are:absenteeattendeecarefreedetaineeedgewiseelectiveembezzleemployeeenvelopeetherealexigenceexpediteforeseenfreebasehoneybeekeepsakelicenseepedigreepeepholeprotegeerefreezereparteesqueegeesteerage
That's hideous.
Some four letter words with double Es are:aleebeefbeenbeepbeerbeetCreedeeddeemdeepdeerepeefeedfeelfeetfleefreegleeheedheeljeepjeerkeelkeenkeepkneeleekleermeekmeetneedpeekpeelpeerreedreefreekreelseedseekseemseenseepseerteentheetreeveerweedweekweepwhee
assiduousness
Antidisestablishmentarianist. (An-ti-dis-es-tab-lish-ment-ar-i-an-ist) That's the only 11 syllable word I can think of.
cages cag-es
eleven compluneoanos is January