Successfully contains double L double C and double S. Unsuccessfully also contains double L double C and double S.
subjectsojourn
boulster
Assessments contains five letter "s". I can't think of another example.
There are many words with double oo`s in them.Noodles,doodles,poodles also moon tool tooth broom
Successfully contains double L double C and double S. Unsuccessfully also contains double L double C and double S.
subject
subjectsojourn
wasssup
One is coccyx (tailbone).Access/accessory Success/succeed
Words containing a double s (ss) include:addressadmissionalbatrossamissass (name for mule)assailassassinassassinateassayassembleassemblyassentassertassertiveassertionassessassessmentassociateassociationassortassortedassaultassumebassbossbassoonclassclassicclassifycompasscompassioncommissioncrasscrosscussdressdrossengrossessayessentialflossfortressglassglossgrassgrossguessharassharassingharassmentharnessharnessedhasslehissimpassibleimpossibleissueissuancekisskissedkissinglasslassolesslessonlosslessonmassmassivemessmessymissmissilemissionmissionarymossossiclepasspassionpassionatepassivepermissionpossepossibleprocessredresssasssassystressstressessuccesssuccessfultasseltissuetosstresses (e.g. long hair)truss
Some words start with Z and have double S: zaniness. zestfulness. zealousness. zipless. zoneless. zestless.
abscondaccordanceacrossaddressadulteressaggressiveagelessalabasteralasalbatrossamassarisearouseassimilateaspenastuteasaspireassuageassetassuredassortedaspirinassassistassertascendassessaccessasteratlasaudience
sizer
boulster
scoopscootshootsheetsheepsheersloopspoonspoolsleeksleepsnoopsteepstoopsteersweepsweetswoop
Here it is plural since the subject icebergs is plural.Verbs forms that are used with plural words (ending in S) will normally not end in S, and vice versa (e.g. icebergs contain; an iceberg contains).