14 letters
- spaciousnesses22
- spatiotemporal24
- specialisation22
- specialization31
- specifications27
- speciousnesses22
- spermiogeneses23
- spermiogenesis23
- sporangiophore25
- spuriousnesses20
- stabilizations28
- stagflationary23
- stationmasters18
- sterilizations25
- stigmatization29
- stoichiometric25
- strangulations20
- stratification21
- structurations20
- studiousnesses18
- stultification23
- suballocations24
- subcollections27
- subcommissions28
- subconsciouses26
- subconsciously29
- subgenerations22
- subinfeudation25
- subirrigations21
- subordinations21
- subpopulations27
- subsaturations20
- subsidizations29
- substantiation20
- substitutional21
- subtilizations29
- successionally26
- summarizations31
- superadditions21
- superambitious25
- superannuation22
- superciliously26
- superelevation24
- supererogation21
- superfetations22
- superinduction25
- superinfection26
- superluxurious29
- supernutrition21
- superovulation25
- superpatriotic24
- superpositions22
- superscription25
- supplantations24
- supposititious22
- suspiciousness23
- syllabications25
- symbolizations33
- symmetrization32
- systemizations29
- tatterdemalion20
- teleportations19
- temporizations30
- tenderizations26
- tergiversation21
- terrorizations24
- thermalization30
- thermojunction34
- traditionalism20
- traditionalist17
- traditionalize26
- transamination20
- transcriptions22
- transductional22
- transformation22
- transgressions18
- transitionally20
- translocations20
- transmigration21
- transmutations20
- transpirations19
- transportation19
- transpositions19
- transvaluation22
- traumatization28
- triangulations20
- tridimensional21
- trivialization29
- ultrapatriotic22
- ultraprecision23
- ultraviolences25
- unaffectionate26
- unappreciation26
- uncircumcision30
- unconscionable28
- unconscionably30
- unconventional27
- underinflation23
- undernutrition20
- undervaluation24
- ungraciousness23
- unidimensional23
- unidirectional22
- unmentionables25
- unostentatious18
- unprofessional24
- unquestionable31
- unquestionably33
- uproariousness20
- urediniospores20
- usuriousnesses18
- uxoriousnesses24
- vaingloriously26
- vandalizations31
- vasodilatation21
- verbalizations32
- verbigerations24
- vermiculations27
- vernalizations30
- versifications25
- victimizations34
- victoriousness23
- violablenesses24
- violoncellists25
- visualizations30
- vitrifications25
- vivisectionist26
- vocationalisms26
- vocationalists23
- volatilization30
- vulcanisations25
- vulcanizations34
- vulgarizations32
- weatherization29
- westernisation19
- westernization28
- winterizations28
- zombifications36