11 letters
- partitioner15
- patronizing27
- petitioning18
- plagiarizer26
- platinizing28
- preignition18
- pretraining18
- proletarian16
- proletariat15
- protonating18
- radiational14
- radiolarian14
- railroading16
- ratiocinate15
- rationalise13
- rationalist13
- rationality15
- rationalize22
- rattlebrain16
- realization22
- reallotting16
- reanalyzing27
- reanimating18
- reanimation16
- reanointing16
- reattaining15
- recantation16
- recognition18
- regionalist15
- regionalize24
- reignitions15
- reinflating19
- reinflation17
- reinstating15
- reiterating14
- reiteration12
- religionist15
- remigration17
- reobtaining18
- reordaining16
- reorienting15
- repartition15
- reradiating15
- reradiation13
- resignation15
- restoration12
- restraining15
- retailoring15
- retaliating15
- retaliation13
- retaliatory14
- retardation13
- retroacting17
- retroaction15
- reutilizing25
- ritualizing25
- rototilling16
- routinizing25
- serializing24
- sterilizing24
- straitening15
- tantalising16
- tantalizers22
- tantalizing25
- teratologic17
- terminating18
- termination16
- territorial12
- terrorizing23
- teutonizing25
- tolerations13
- totalizator21
- traditional14
- trailerings15
- translating16
- translation14
- trepanation16
- triangulate16
- trimetrogon17
- trinitarian13
- tyrannizing27
- unitization23
- utilitarian14
- utilization23
- variational17
- variegation18
- ventilating20
- ventilation18
- vernalizing29
- winterizing27
- zillionaire23
- zoantharian24