| Text | Length |
| On the cheap end | 16 |
| On the Channel | 14 |
| On the Celebes | 14 |
| On the Caspian | 14 |
| On the carpet | 13 |
| On the Caribbean | 16 |
| On the canvas | 13 |
| On the calmer side | 18 |
| On the calm side | 16 |
| On the button | 13 |
| On the briny | 12 |
| On the brink of | 15 |
| On the brink | 12 |
| On the bright side | 18 |
| On the border of | 16 |
| On the Board | 12 |
| On the blue side | 16 |
| On the block | 12 |
| On the blink | 12 |
| On the Black or Red | 19 |
| On the Black | 12 |
| On the big drink | 16 |
| On the Big Board | 16 |
| On the beach | 12 |
| On the Barents | 14 |
| On the Baltic, say | 18 |
| On the Baltic | 13 |
| On the authority of | 19 |
| On the Atlantic | 15 |
| On the ascendant | 16 |
| On the apex of | 14 |
| On the Andaman | 14 |
| On the alert | 12 |
| On the agenda | 13 |
| On the Aegean, say | 18 |
| On the Aegean, e.g. | 19 |
| On the Aegean | 13 |
| On the Adriatic | 15 |
| On the A-list | 13 |
| On the --- vive | 15 |
| On the -- vive | 14 |
| On the -- (fleeing) | 19 |
| On that spot | 12 |
| On that account | 15 |
| On terra firma | 14 |
| On tenterhooks | 14 |
| On t'other side | 19 |
| On sudden impulse | 17 |
| On strike, say | 14 |
| On stage by herself | 19 |
| On SS, perhaps | 14 |
| On SS, maybe | 12 |
| On something? | 13 |
| On something | 12 |
| On solid ground | 15 |
| On Social Sec., say | 19 |
| On Social Sec. | 14 |
| On Soc. Sec., say | 17 |
| On Soc. Sec., often | 19 |
| On Soc. Sec., maybe | 19 |
| On Soc. Sec. | 12 |
| On sick leave | 13 |
| On short notice | 15 |
| On sheltered side | 17 |
| On shank's mare | 19 |
| On shaky ground | 15 |
| On sale, say | 12 |
| On sabbatical, e.g. | 19 |
| On sabbatical | 13 |
| On rare occasions | 17 |
| On pins/needles | 15 |
| On pins and needles | 19 |
| On pension: Abbr. | 17 |
| On pension (Abbr.) | 18 |
| On open waters | 14 |
| On one's _____ | 18 |
| On one's ____ | 17 |
| On one's ___ | 16 |
| On one's way | 16 |
| On one's uppers | 19 |
| On one's toes | 17 |
| On one's side | 17 |
| On one's rocker | 19 |
| On one's own | 16 |
| On one's mark | 17 |
| On one's guard | 18 |
| On one's game | 17 |
| On one's feet | 17 |
| On one's duff | 17 |
| On one's case | 17 |
| On one's back | 17 |
| On one occasion | 15 |
| On one extreme | 14 |
| On Old Ironsides | 16 |
| On neither side | 15 |
| On naval operations | 19 |
| On naval maneuvers | 18 |
| On Mom's side | 17 |
| On meds, say | 12 |
| On line, maybe | 14 |
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