Fetching details from the dictionary...

average; medium; common; ordinary
mid-grade (item); regular grade
same level as; equal to; equivalent to; on par with
each (e.g. month); every
row of (teeth, houses, etc.); line of
彼の成績は並より少し上だね。
His grades are slightly above average.
この店の料理の味は並だと思うよ。
I think this restaurant's taste is average.
並の努力だけでは成功は難しいよ。
Ordinary effort won't lead to success.