There are 15 words that start with 'viru'.
| virus | viruses | virucide |
| virulent | virusoid | virucidal |
| virucides | virulence | virulency |
| viruslike | virusoids | virulences |
| virulently | virulencies | viruliferous |
Note: These 15 words that start with 'viru' are found from the USA & Canada version of the tournament Scrabble word list.