Using all letters

                                                                           propitiatory

                                                                              topiary

                                                                          The other words:

                                                                              airport

                                                                              apiary

                                                                           appropriator

                                                                               atria

                                                                               atrip

                                                                             oratorio

                                                                              papyri

                                                                              parity

                                                                               parti

                                                                              partita

                                                                               patio

                                                                              patriot

                                                                               pipit

                                                                              pitapat

                                                                             portrait

                                                                               prior

                                                                              priori

                                                                             priority

                                                                              priory

                                                                              rarity

                                                                               ratio

                                                                              riprap

                                                                               tapir

                                                                               tiara

                                                                               tippy

                                                                              tiptop

                                                                             titrator

                                                                               titty

                                                                               torii

                                                                               trait

                                                                              traitor

                                                                              tripart

                                                                              tropia

                                                                              yttria