| 51. | on your marks, get set, go! | Achtung! Fertig! Los! |
| 52. | once a week | alle acht Tage |
| 53. | one after the other | am laufenden Band |
| 54. | one can just about overlook / excuse that | das mag (noch) angehen |
| 55. | one minute he wants to, the next minute he doesn't | bald will er, bald will er nicht |
| 56. | one minute it was raining, the next the sun was shining | Regen und Sonnenschein wechselten (sich) ab |
| 57. | one moment / just a minute, please | (einen) Augenblick! |
| 58. | one shouldn't judge / go by appearances | man sollte nicht nach dem Aussehen urteilen |
| 59. | one thing after another | eins nach dem anderen! |
| 60. | one thing led to another | es kam eins zum anderen |