| Word | Definitions | Synonyms |
|---|---|---|
| crucial | (adjective) of extreme importance; vital to the resolution of a crisis | Synonyms: important |
| (adjective) of the greatest importance | Synonyms: all-important, all important, essential, of the essence | |
| (adjective) having crucial relevance | - | |
| cruciate | (adjective) shaped like a cross | Synonyms: cruciform |
| cruciferous | (adjective) of or relating to or belonging to the plant family Cruciferae | - |
| cruciform | (adjective) shaped like a cross | Synonyms: cruciate |