Insofar as

[ROBINDESBOIS]

can anybody give a more informal conjunction meaning the same?

[Perikles]

Originally Posted by ROBINDESBOIS

can anybody give a more informal conjunction meaning the same?

It is a complex subordinator and the Oxford dictionary gives it as in so far as, although others give insofar as and in-so-far as. Anyway, it normally means to the extent that, and can often be substituted by so far as, though or since, depending on context.

[poli]

In that is commonly used. For example:

They are simlar in so far as they have the same occupation in live in the same town
Thy are similar in that they have the same...