| |||
| non-inflammable; non-combustible | |||
| |||
| not combustible | |||
| non-combustible; fireproof | |||
|
non-combustible : 19 phrases in 10 subjects |
| Chemistry | 1 |
| Electronics | 1 |
| Energy industry | 1 |
| Environment | 2 |
| Finances | 3 |
| General | 5 |
| Natural resourses and wildlife conservation | 3 |
| Nuclear physics | 1 |
| Transport | 1 |
| United Nations | 1 |