There are 11 words that start with 'malac'.
| malacca | malaccas |
| malachite | malachites |
| malacology | malacologies |
| malacologist | malacological |
| malacologists | malacostracan |
| malacostracans | |
Note: These 11 words that start with 'malac' are found from the USA & Canada version of the tournament Scrabble word list.