Your daily dose of word puzzle magic
For puzzles requiring BIO prefixes, here are all 9-letter word options. Popular examples include BIOACTIVE, BIOASSAYS, BIOCYCLES, plus BIOETHICS, BIOGASSES, BIOGENIES and many more. Explore different vowel patterns after BIO to find your word quickly.
| Word | Definition | Length | Syllables |
|---|---|---|---|
| bioactive | 9 | 2 | |
| bioassays | 9 | 2 | |
| biocycles | 9 | 3 | |
| bioethics | 9 | 2 | |
| biogasses | 9 | 3 | |
| biogenies | 9 | 3 | |
| biogenous | 9 | 3 | |
| biography | 9 | 3 | |
| biohazard | 9 | 3 | |
| biologics | 9 | 3 | |
| biologies | 9 | 3 | |
| biologism | 9 | 3 | |
| biologist | 9 | 3 | |
| biomasses | 9 | 3 | |
| biometric | 9 | 3 | |
| bionomics | 9 | 3 | |
| bionomies | 9 | 3 | |
| bioplasms | 9 | 2 | |
| biopsying | 9 | 2 | |
| biorhythm | 9 | 2 | |
| biosafety | 9 | 4 | |
| bioscopes | 9 | 3 | |
| biosensor | 9 | 3 | |
| biosocial | 9 | 3 | |
| biosphere | 9 | 2 | |
| biotoxins | 9 | 3 |
Are BIO-starting words common?
BIO is a frequent start; probing vowel swaps after BIO 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!