| O'Sullivan-O'Toole duo | 30 |
| O'Sullivan from Boyle | 25 |
| O'Shea who appeared on "Ed Sullivan" the same night as the Beatles | 80 |
| O'Shea of music-hall fame | 29 |
| O'Shea of films | 19 |
| O'Shea of "The Verdict" | 37 |
| O'Shea of The Verdict | 29 |
| O'Shanter | 13 |
| O's, to Onassis | 19 |
| O's, in letters | 19 |
| O's rivals | 14 |
| O's predecessors | 20 |
| O's overseas | 16 |
| O's is one more than N's | 32 |
| O's is 8 | 12 |
| O's division | 16 |
| O's and Jays | 16 |
| O's and A's org. | 24 |
| O'Rourke, e.g., of "F Troop": Abbr. | 49 |
| O'Rourke of F Troop | 27 |
| O'Reilly of Fox News | 24 |
| O'Reilly of MASH | 24 |
| O'Neill, to Fellini | 23 |
| O'Neill, Charlie's wife | 31 |
| O'Neill's ___ Smith | 27 |
| O'Neill's Yank, e.g. | 28 |
| O'Neill's trees | 23 |
| O'Neill's specialty | 27 |
| O'Neill's mother | 24 |
| O'Neill's monogram | 26 |
| O'Neill's Lavinia Mannon, e.g. | 38 |
| O'Neill's Jones | 23 |
| O'Neill's hirsute stoker | 32 |
| O'Neill's hairy title character | 39 |
| O'Neill's forte | 23 |
| O'Neill's field | 23 |
| O'Neill's Emperor | 25 |
| O'Neill's daughter | 26 |
| O'Neill's Christie | 26 |
| O'Neill's Anna | 22 |
| O'Neill's "___ the Horizon" | 45 |
| O'Neill's "___ Millions" | 42 |
| O'Neill's "___ Interlude" | 43 |
| O'Neill's "___ for the Misbegotten" | 53 |
| O'Neill's "___ for the Misbegotten'' | 57 |
| O'Neill's "___ Christie" | 42 |
| O'Neill's "__ for the Misbegotten" | 52 |
| O'Neill's "__ Christie" | 41 |
| O'Neill's "The ___ Cometh" | 44 |
| O'Neill's "The __ Cometh" | 43 |
| O'Neill's "The Iceman ___" | 44 |
| O'Neill's "The Hairy ___" | 43 |
| O'Neill's "The Hairy __" | 42 |
| O'Neill's "The Great ___ Brown" | 49 |
| O'Neill's "Strange ___" | 41 |
| O'Neill's "Long Day's Journey ___ Night" | 62 |
| O'Neill's "Desire Under the ___" | 50 |
| O'Neill's "Desire Under the __" | 49 |
| O'Neill's "Desire Under the ---" | 50 |
| O'Neill's "Beyond the ___" | 44 |
| O'Neill's "A Touch of the ___" | 48 |
| O'Neill's "--- Christie" | 42 |
| O'Neill works | 17 |
| O'Neill work | 16 |
| O'Neill whom J. D. Salinger wanted to marry | 47 |
| O'Neill was one | 19 |
| O'Neill trees | 17 |
| O'Neill tree of desire | 26 |
| O'Neill tree | 16 |
| O'Neill title word | 22 |
| O'Neill title trees | 23 |
| O'Neill title starter | 25 |
| O'Neill title flora | 23 |
| O'Neill title ender | 23 |
| O'Neill title character | 27 |
| O'Neill subject | 19 |
| O'Neill specialty | 21 |
| O'Neill silva | 17 |
| O'Neill sequel? | 19 |
| O'Neill relative | 20 |
| O'Neill protagonist | 23 |
| O'Neill play: 1920 | 22 |
| O'Neill play: 1917 | 22 |
| O'Neill play, with "The" | 38 |
| O'Neill play about pipe dreams | 34 |
| O'Neill play | 16 |
| O'Neill output | 18 |
| O'Neill opus | 16 |
| O'Neill one-act play | 24 |
| O'Neill name | 16 |
| O'Neill monogram | 20 |
| O'Neill masterwork, for short | 33 |
| O'Neill locale for lust | 27 |
| O'Neill issue | 17 |
| O'Neill heroine, et al. | 27 |
| O'Neill heroine Leeds | 25 |
| O'Neill heroine | 19 |
| O'Neill hero | 16 |
| O'Neill girl | 16 |
| O'Neill from Mass. | 22 |