Word library
The answer library contains 394 five- and six-letter terms from introductory through advanced high-school STEM topics. The revised library begins with the October 5, 2026 editions. Each answer includes a short definition. Some terms belong to several subjects; the game shows one relevant subject.
| Subject | Answers |
|---|---|
| Physics | 58 |
| Chemistry | 65 |
| Biology | 88 |
| Math | 55 |
| Computer science | 59 |
| Engineering | 69 |
Definitions are brief explanations written for this game. This is a vocabulary puzzle, not a comprehensive course assessment. Answers name established STEM concepts, quantities, structures, materials, tools, or programming keywords. Everyday words qualify when they have a distinct technical meaning, such as FORCE, FIELD, or ARRAY; a loose connection to a STEM activity is not enough. Standard plurals can be answers.
Further reading
- OpenStax Physics
- OpenStax Chemistry 2e
- OpenStax Biology 2e
- OpenStax Algebra and Trigonometry 2e
- Python programming glossary
- NASA Glenn aerodynamics resources
Accepted guesses
The guess dictionary contains 34,920 five- and six-letter English words from Sindre Sorhus’s word-list, plus any STEM answers missing from that dictionary. Words in the guess dictionary are not necessarily possible answers.
The English word list is distributed under the MIT license. It was retrieved October 4, 2026. The game loads its dictionary locally from this site.
Schedule and records
Releases use Eastern time. Every eligible word appears before any answer repeats. A fresh cycle starts with the October 5 editions; the earlier testing editions do not count toward it. Each full cycle contains 394 answers and lasts 197 days. Earlier editions and saved results retain their original answers. Your browser’s clock determines which puzzles are available. Records are saved only in this browser on this device; there are no accounts or shared leaderboards.