or so
A phrase used to approximate an amount. It typically follows a number or quantity of some kind. A: "How many more chairs do you think we'll need?" B: "Probably 20 or so."
or so
Approximately, especially alluding to a number, as in Four hundred or so guests are invited. [Late 1500s]
...or so
used after a number, an amount, etc. to show that it is not exact: He stayed for a week or so.Take a kilo or so of sugar...