broadly speaking
used to show that what you are saying is true in a general, etc. way
Generally speaking, the more you pay, the more you get.
There are, broadly speaking, two ways of doing this.
Personally speaking, I've always preferred Italian food.
ある事柄に関して確信が持てないため、正確な陳述を避けるときにあいまいなかんじで終わらせることができるつなぎ語。これを使うときは正確な数字等(だいたい10人とかいう言い方)は使えない
on the whole (全般的にみて), by and large (概して)、broadly speaking (大まかに言って)は3つとも文頭、文中、文尾のいずれの位置で用いても良い