| "O thou pale ___ that silent shines": Burns | 53 |
| "O the cannons ___ their rosy-flashing muzzles!": Whitman | 67 |
| "O terra, addio," e.g. | 32 |
| "O tender yearning, sweet ___!": Schiller | 51 |
| "O tempora, O mores!" speaker | 39 |
| "O tempora! _____!": Cicero | 37 |
| "O tempora! ___!": Cicero | 35 |
| "O tempora! ___!" | 27 |
| "O tempora! O _____!" | 31 |
| "O tempora! O ___!": Cicero | 37 |
| "O tempora! O ___!" | 29 |
| "O tempora! O mores!" orator | 38 |
| "O Tannenbaum" time | 29 |
| "O Tannenbaum" subject | 32 |
| "O sole _____" | 24 |
| "O Sole ___" (tenor warhorse) | 39 |
| "O Sole ___" (standard Italian song) | 46 |
| "O Sole ___" | 22 |
| "O Sole __" | 21 |
| "O Sole Mio" composer di Capua | 40 |
| "O Sole ---" | 22 |
| "O short-liv'd pride! ___?": Shak. | 48 |
| "O shed ___!": Keats | 30 |
| "O shed no ___!": Keats | 33 |
| "O say can you see" or "Thru the perilous fight"? | 69 |
| "O Sanctissima," e.g. | 31 |
| "O Sacred Head, Now Wounded," e.g. | 44 |
| "O Rei do Futebol" | 28 |
| "O rare" poet | 23 |
| "O Rare Ben Johnson" is engraved (in error) on one | 60 |
| "O Pioneers!" setting | 31 |
| "O Pioneers!" novelist Cather | 39 |
| "O Pioneers!" author | 30 |
| "O patria ___," Verdi aria | 36 |
| "O patria ___" ("Aida" aria) | 48 |
| "O patria __": "Aida" aria | 46 |
| "O patria mia," e.g. | 30 |
| "O patria mia" source | 31 |
| "O patria mia" singer | 31 |
| "O patria mia" is one | 31 |
| "O nightingale, that on __ bloomy spray ...": Milton | 62 |
| "O naked Moon full-___!": Browning | 44 |
| "O my prophetic ___!": Hamlet | 39 |
| "O mio babbino ___" (Puccini aria) | 44 |
| "O mio babbino caro," for one | 39 |
| "O mio babbino caro," e.g. | 36 |
| "O mighty Caesar! ___ thou lie so low?": Shak. | 56 |
| "O May, Thy ___" (Robert Burns song) | 46 |
| "O magic _____!": Keats | 33 |
| "O magic ___!": Keats | 31 |
| "O Kaplan! My Kaplan!" author | 39 |
| "O Isis und Osiris," e.g. | 35 |
| "O is ___ then? My duty all ended" | 44 |
| "O ill-starr'd ___!": Othello | 43 |
| "O Henry, ___ thine eyes!": Shak. | 43 |
| "O Henry, ___ thine eyes!" (Shakespeare) | 50 |
| "O Henry, --- thine eyes!" (Shakespeare) | 50 |
| "O Freunde, nicht ___ Töne! (opening line to Beethoven's Ninth) | 75 |
| "O frabjous day!" source | 34 |
| "O frabjous day!" and the like? | 41 |
| "O Fortuna" composer | 30 |
| "O For a Thousand Tongues" composer | 45 |
| "O earth! What ___?": Hamlet | 38 |
| "O Du, ___ holder Abendstern" (Wagner aria) | 53 |
| "O dolci mani" opera | 30 |
| "O Deus, Ego ___ Te" (Latin hymn) | 43 |
| "O Deus Ego ___ Te" (Latin hymn) | 42 |
| "O Deus Ego ___ Te" (Catholic hymn) | 45 |
| "O death, where is ___ sting?" (1 Cor. 15:55) | 55 |
| "O death, where is ___ sting?" | 40 |
| "O dear!" | 19 |
| "O curse of ___!": Othello | 36 |
| "O curse of marriage ..." speaker | 43 |
| "O coward conscience, how ___ thou afflict me!"--Shakespeare | 70 |
| "O come, _____ ..." | 29 |
| "O come, ___..." | 26 |
| "O Come, ___ Faithful" | 32 |
| "O come, ___ faithful . . . " | 39 |
| "O come, __ ..." | 26 |
| "O Come, O Come Emmanuel," e.g. | 41 |
| "O come, let us _____ Him" (carol lyric) | 50 |
| "O Come, All Ye Faithful," for one | 44 |
| "O Come, All Ye Faithful," e.g. | 41 |
| "O come ___ Bethlehem" | 33 |
| "O Come Let Us ___ Him" | 33 |
| "O come let us --- him" | 33 |
| "O Come All Ye Faithful" verb | 39 |
| "O Captain! My Captain!," e.g. | 40 |
| "O Canada," for one | 29 |
| "O Canada," e.g. | 26 |
| "O Canada" is one | 27 |
| "O Brother, Where Art ___?" soundtrack | 48 |
| "O Brother, Where Art ___?" (2000 film) | 49 |
| "O Brother, Where Art ___?" | 37 |
| "O Brother, Where Art ___" | 36 |
| "O Brother, Where Art Thou?" directing brothers | 57 |
| "O Brother, Where Art ---?" | 37 |
| "O brave ___ world . . . !" | 37 |
| "O beautiful ___ spacious skies . . ." | 48 |
| "O Babylon!" playwright Derek | 39 |