| 火 | huǒ sù | at top speed / at a tremendous lick | 
| 火 | Huǒ | surname Huo | 
| 火 | huǒ | fire / urgent / ammunition / fiery or flaming / internal heat (Chinese medicine) / hot (popular) / classifier for military units (old) / Kangxi radical 86 | 
| 速 | sù | fast / rapid / quick / velocity |