11 letters
- recalibrate18
- recantation16
- recitations15
- reclamation19
- recombinant22
- rectilinear16
- redactional17
- reification18
- reincarnate16
- reinflation17
- reiteration12
- reluctation17
- rentability18
- reobtaining18
- repartition15
- replication19
- reradiation13
- restriction15
- retailoring15
- retaliating15
- retaliation13
- retaliatory14
- retardation13
- retractable18
- retractions15
- retrainable16
- retribution16
- retroacting17
- retroaction15
- rhetorician17
- rubrication19
- termination16
- territorial12
- trabeations15
- traditional14
- transaction16
- transection16
- translation14
- translocate16
- trepanation16
- tribulation17
- trinitarian13
- utilitarian14
- vaticinator19
- ventilation18
- vibrational20