There are 13 words that start with 'astra'.
| astral | astray | astrals |
| astragal | astrally | astrachan |
| astraddle | astragali | astragals |
| astrakhan | astrachans | astragalus |
| astrakhans | ||
Note: These 13 words that start with 'astra' are found from the USA & Canada version of the tournament Scrabble word list.