So, so, so, so

I had a query the other day about niin, siis, näin and noin - what they mean and when to use them.

The last two are easy:

näin - "like this", as in tee näin - "do it like this"
noin - "like that", as in älä tee noin - "don't do it like that"

This and that in the above sentences refer to location and proximity - the "this" and "that" mean that the thing to do or example to follow are close by and some distance away (typically out of reach) respectively.

siis - so, therefore, accordingly
For example, ajattelen, siis olen. - "I think, so I am". The word siis is used in a sentence with a conclusion.

niin - so
For example, olen niin väsynyt - "I am so tired". In this case "so" means "extremely" or "very. It can also mean an affirmative yes: niin on - "so it is."

Finally, there is an expression that uses niin but has a different meaning:
no niin - well then, all righty, now then, so then, okay

No niin, this post is finished.