Your daily dose of word puzzle magic
For puzzles requiring OS prefixes, here are all 10-letter word options. Popular examples include OSCILLATED, OSCILLATES, OSCILLATOR, plus OSCULATING, OSCULATION, OSCULATORY and many more. Use the table below to find the perfect word for your game.
| Word | Definition | Length | Syllables |
|---|---|---|---|
| oscillated | 10 | 4 | |
| oscillates | 10 | 4 | |
| oscillator | 10 | 4 | |
| osculating | 10 | 4 | |
| osculation | 10 | 4 | |
| osculatory | 10 | 5 | |
| osmeterium | 10 | 4 | |
| osmiridium | 10 | 4 | |
| osmolality | 10 | 5 | |
| osmolarity | 10 | 5 | |
| osmometers | 10 | 4 | |
| osmometric | 10 | 4 | |
| ossifrages | 10 | 4 | |
| osteitides | 10 | 4 | |
| ostensible | 10 | 3 | |
| ostensibly | 10 | 4 | |
| ostensoria | 10 | 4 | |
| osteoblast | 10 | 3 | |
| osteoclast | 10 | 3 | |
| osteocytes | 10 | 4 | |
| osteogenic | 10 | 4 | |
| osteopaths | 10 | 3 | |
| osteopathy | 10 | 4 | |
| osteosises | 10 | 4 | |
| ostracised | 10 | 4 | |
| ostracises | 10 | 4 | |
| ostracisms | 10 | 3 | |
| ostracized | 10 | 4 | |
| ostracizes | 10 | 4 | |
| ostracodes | 10 | 4 |
Are OS-starting words common?
OS is a frequent start; probing vowel swaps after OS quickly narrows options.
Is this list good for crosswords?
Yes—filter by length mentally and scan definitions when available.
Use these words to dominate in our daily games!