| 100% | ORESTEIA | 8 | Trilogy of tragedies by Aeschylus |
| 63% | ORESTEIA | 8 | The —, trilogy of plays by Aeschylus |
| 49% | THENORMAN | 9 | Trilogy of 1973 stage plays by Alan Ayckbourn |
| 48% | MARCH | 5 | Trilogy of graphic memoirs co-written by John Lewis |
| 45% | THESCHOLOMANCE | 14 | Trilogy of novels by 27-Across set in a magic school (2 wds.) |
| 45% | LIBATIONBEARERS | 15 | Middle of an Aeschylus trilogy, with "The" |
| 44% | CAIRO | 5 | Setting of a trilogy by Naguib Mahfouz |
| 42% | SWORDOF | 7 | & 15A Trilogy of novels by Evelyn Waugh including Men at Arms |
| 42% | FANTASY | 7 | Genre of the "Broken Earth" trilogy by N. K. Jemisin |
| 41% | BRIGHTON | 8 | First play of the Eugene Trilogy by Neil Simon, " ___ Beach Memoirs" |
| 41% | RINGS | 5 | "The Lord of the ___," fantasy trilogy by J.R.R. Tolkien |
| 40% | PLEXUS | 6 | 1953 novel by Henry Miller, second volume of trilogy The Rosy Crucifixion |
| 39% | SEA | 3 | Subject of the trilogy penned by Rachel Carson before she wrote "Silent Spring" |
| 39% | TABLEMANNERS | 12 | 1973 stage play by Alan Ayckbourn; first part of The Norman Conquests trilogy |
| 39% | MADAME | 6 | & 24A 1900 one-act play by David Belasco subtitled A Tragedy of Japan |
| 39% | TED | 3 | Bill and ___, friends from the eponymous trilogy of films who are played by Alex Winter and Keanu Reeves |
| 38% | REY | 3 | Jedi Master and protagonist of the "Star Wars" sequel trilogy played by Daisy Ridley |
| 38% | HATTRICK | 8 | Trilogy of successes |
| 38% | OEDIPUSREX | 10 | Tragedy by Sophocles |
| 38% | MEDEA | 5 | Tragedy by Euripides |
| 37% | ROOM | 4 | "The Locked ___," 1986 novel by Paul Auster that is a part of his New York trilogy |
| 37% | BOROMIR | 7 | Character in Peter Jackson's The Lord of the Rings film trilogy played by Sean Bean |
| 37% | RINGS | 5 | "The Lord of the ___" (J.R.R. Tolkien trilogy adapted as epic films by Peter Jackson) |
| 36% | DARTHVADER | 10 | Primary antagonist in the original trilogy of "Star Wars" who saves his son, Luke Skywalker, by sacrificing his life: 2 wds. |
| 36% | LEAR | 4 | King of tragedy |
| 36% | REN | 3 | Kylo ___, Princess Leia's son and antagonist of the "Star Wars" sequel trilogy played by Adam Driver |
| 36% | NIOBE | 5 | Lost play by Aeschylus |
| 35% | ORESTEIA | 8 | Aeschylus trilogy |
| 35% | SEVENAGAINSTTHEBES | 18 | Aeschylus tragedy |