10 letters
- reentrants12
- reimported17
- remittance17
- remotivate17
- renominate15
- renovation16
- repapering19
- reparation14
- repatriate13
- repatterns14
- repetition14
- reputation15
- resorption14
- retentions12
- retirement14
- retraction14
- retransmit14
- retreating13
- rotameters13
- spirometer16
- stentorian12
- stepparent17
- temporizer25
- temptation17
- tenantries12
- tenotomies14
- terminated15
- terminates14
- terminator14
- tetrameric16
- tetraspore13
- tiemannite15
- toleration12
- tonometers14
- tormenters14
- tormenting17
- tormentors14
- torrential12
- tournament16
- tramontane15
- trampoline18
- travertine15
- treponemal18
- treponemas17
- tripinnate15
- tryptamine19
- turpentine16
- urinometer15
- variometer17
- veneration16
- wiretapper19