On step nine, it says "knit"
does that simply mean that I knit one row?
Yes. Row 9 is a knit row. Just knit all the way across.
and what does "repeat from *" mean?
from the pattern: R 10 *SSK, knit 2, knit 2 together. Repeat from *.
You work through the steps, then repeat SSK, knit 2, knit 2 together as many times as it takes to finish the row.