| Text | Length |
| One-celled animals | 18 |
| One-celled animal | 17 |
| One-celled alga | 15 |
| One-cell creatures | 18 |
| One-by-one formation, as in walking | 35 |
| One-billionth: Prefix | 21 |
| One-billionth: Comb. form | 25 |
| One-billionth of a gig | 22 |
| One-band set | 12 |
| One-band appliances | 19 |
| One-armed ___ | 13 |
| One-armed pitcher? | 18 |
| One-armed bandits? | 18 |
| One-armed bandits | 17 |
| One-armed bandit, briefly | 25 |
| One-armed bandit's gullet | 29 |
| One-armed bandit's arm | 26 |
| One-armed bandit's "mouth" | 40 |
| One-armed bandit picture | 24 |
| One-armed bandit feature | 24 |
| One-armed bandit | 16 |
| One-and-only | 12 |
| One-and-a-half turns in the air | 31 |
| One-acter | 9 |
| One-act Strauss opera | 21 |
| One-act Sartre play | 19 |
| One-act play by O'Neill | 27 |
| One-act play | 12 |
| One-act Oscar Wilde play | 24 |
| One-act opera by Puccini | 24 |
| One-act opera by Camille Saint-Saens | 36 |
| One-a-Day ingredient | 20 |
| One- _____ (short play) | 23 |
| One- ____ | 9 |
| One- to ten-yr. investments | 27 |
| One- liner | 10 |
| One- -- (short shows) | 21 |
| One- -- (short plays) | 21 |
| One- -- (short films) | 21 |
| One- -- (short drama) | 21 |
| One- -- (biased) | 16 |
| One, with "a" | 23 |
| One, two, or three | 18 |
| One, two and three ... or this puzzle's title | 49 |
| One, to Wilhelm | 15 |
| One, to Wagner | 14 |
| One, to some | 12 |
| One, to Ouida | 13 |
| One, to Otto | 12 |
| One, to Oppenheimer | 19 |
| One, to one, e.g. | 17 |
| One, to Marie | 13 |
| One, to Juanita | 15 |
| One, to Juana | 13 |
| One, to Juan | 12 |
| One, to Jacques | 15 |
| One, to Helmut | 14 |
| One, to Hans | 12 |
| One, to Fritz (3) | 17 |
| One, to Fritz | 13 |
| One, to Burns | 13 |
| One, to Beethoven | 17 |
| One, to Antoine | 15 |
| One, to Angus | 13 |
| One, to a Scot | 14 |
| One, three or five, e.g. | 24 |
| One, somewhere | 14 |
| One, some or all | 16 |
| One, six, etc.:Abbr; | 20 |
| One, on the one | 15 |
| One, on a one | 13 |
| One, of a kind | 14 |
| One, no matter which | 20 |
| One, informally | 15 |
| One, in Wiesbaden | 17 |
| One, in Weimar | 14 |
| One, in Weedon | 14 |
| One, in Waldheim | 16 |
| One, in Vienna | 14 |
| One, in Verdun | 14 |
| One, in Ulm | 11 |
| One, in the Louvre | 18 |
| One, in Spain | 13 |
| One, in Scotland | 16 |
| One, in Saint-Émilion | 25 |
| One, in Roma | 12 |
| One, in Portuguese | 18 |
| One, in Pisa | 12 |
| One, in Perth | 13 |
| One, in Paris | 13 |
| One, in Osnabruck | 17 |
| One, in Orléans | 18 |
| One, in Oldenburg | 17 |
| One, in Oberhausen | 18 |
| One, in Oberammergau | 20 |
| One, in Oaxaca | 14 |
| One, in Naples | 14 |
| One, in Nantes | 14 |
| One, in Munich | 14 |
| One, in Muenster | 16 |
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