| Word | Definitions | Synonyms |
|---|---|---|
| fossilise | (verb) convert to a fossil | Synonyms: fossilize |
| (verb) become mentally inflexible | Synonyms: fossilize | |
| fossilize | (verb) convert to a fossil | Synonyms: fossilise |
| (verb) become mentally inflexible | Synonyms: fossilise | |
| foster | (verb) help develop, help grow | Synonyms: nurture |
| (verb) promote the growth of | Synonyms: cultivate, further | |
| (verb) bring up under fosterage; of children | - |