Patt2tog

What does this mean?

Patt2tog, patt to last 2 sts, patt2tog for nine rows - does 9 rows mean counting RS & WS as 1 row?

Welcome to the forum!
What is the name of your pattern and designer?
Unless your pattern specifies otherwise, count every row, RS and WS. RS counts as one row, WS counts as one row.