10 letters
- studiously16
- subduction20
- subjection27
- sublations16
- submersion18
- submission18
- subperiods18
- subregions17
- subreption18
- subsection18
- substation15
- subvention20
- subversion19
- succession18
- suctioning18
- suffusions19
- suggestion16
- summations18
- superiorly17
- supination16
- suppletion19
- surjection24
- suspension16
- suspicions18
- suspicious18
- tabulation16
- tarnations12
- television16
- teliospore14
- temptation17
- tenebrious15
- tensioners12
- tensioning15
- thermionic19
- thiopental17
- thiophenes18
- thiouracil17
- titivation15
- titrations11
- toleration12
- tortiously14
- trabeation14
- tractional15
- traditions12
- trajection23
- transition12
- trillionth15
- trisection14
- triskelion16
- truncation16
- ulceration16
- ulteriorly15
- ululations15
- undulation16
- ungracious18
- unionising16
- unionizing25
- uproarious15
- urinations13
- urtication15
- usuriously16
- usurpation16
- uxoriously22
- vacationed19
- vacationer18
- validation17
- valuations17
- variations15
- variometer17
- vegetation17
- veneration16
- vermilions19
- vermillion20
- vernations16
- vibrations18
- victorious18
- violaceous19
- violations16
- violinists16
- visionally19
- visionless16
- visitation15
- vitiations15
- vitrioling18
- vitriolled17
- vocational19
- volitional17
- xenobiotic24
- zabaglione26
- zwitterion23