15-Letter Words Starting With SU

There are 87 15-letter words that start with SU. 22 are common words, such as SUBPROFESSIONAL and SUBSTANTIATIONS. A rarer one is SUSPENSEFULNESS. In this set, E is the most frequent open letter (79 words). 21 words contain a doubled letter.

Full list 87

Common words

subprofessionalsubstantiationssumptuousnessessuperabundancessuperannuationssuperconductingsuperconductivesuperconductorssupererogationssuperfluousnesssuperimpositionsuperintendence
subprofessionalsubstantiationssumptuousnessessuperabundancessuperannuationssuperconductingsuperconductivesuperconductorssupererogationssuperfluousnesssuperimpositionsuperintendencesuperintendencysuperintendentssupernumerariessupersaturatingsupersaturationsuperscriptionssuperstitiouslysuperstructuressupplementationsurreptitiouslysubcontraoctavesublapsarianismsubstratospheresuburbanizationsuperficialnesssuperheterodynesuperindividualsuperlativenesssupernaturalismsupernaturalistsuperpatriotismsuperstructuralsubcategorizingsubdevelopmentssubinfeudationssubmetacentricssuboptimizationsubordinatenesssuborganizationsubproletariatssubreptitiouslysubspecializingsubstantialnesssubstantivenesssubstantivizingsubstitutionarysubterraneouslysubvocalizationsuccinylcholinesulfinpyrazonessulfurousnessessuperablenessessuperabsorbentssuperabundantlysuperactivitiessuperbureaucratsupercalenderedsupercontinentssuperconvenientsuperefficiencysuperelevationssuperencipheredsuperfluiditiessupergovernmentsuperhumanitiessuperinductionssuperinfectionssupermajoritiessupernutritionssuperovulationssuperparasitismsuperphenomenonsuperphosphatessuperplasticitysuperspecialistsuperspectaclessuperstimulatedsuperstimulatessupersubtletiessupersymmetriessuppressibilitysuppressivenesssurvivabilitiessusceptiblenesssuspensefulness

About this list

Words
87 (22 common words)
Common example
subprofessional
Rare example
suspensefulness
Doubled letters
21
Ending in S
43
Most frequent letter
E (79)

Questions

How many 15-letter words starting with su are there?

87. 22 of them are common words.

What is a common example?

SUBPROFESSIONAL is among the common words in this set.