Can you start a sentence with the word "SO"?

Answer 1

Best Answer - Chosen by Voters

You can use it for only certain meanings. For example, you can use it as an adverb "So it turned out, John is an idiot after all." (sorry John)

Also, "So, what?" is actually a complete sentence; much like "Who cares?"

However, you can't use it as a conjunction i.e.
"So any mistakes are caught, proofread your work." A sentence like this is bad. Very very bad..

I'd like to point out that Therefore is no better of a substitute for "so" while trying to use "so" as a conjunction. :-\ sorry.

Answer 2

He didn't ask for the collegiate explanation. Yes, I can start a sentence with so. It might be improper but I can do it.

Answer 3

So, I'd say no. It's a technical writing thing. It shows weak grammar. Use therefore instead.