same
The Italian word for 'same' is 'stesso'. It is used similarly to the English equivalent, denoting when two or more things are identical or not different. It can be used in various contexts just like in English. For example, while expressing that two things are similar, you could use it in a sentence like 'Questi due libri sono lo stesso' which translates to 'These two books are the same.'
It's the same problem as yesterday
This sentence implies that the problem being referred to is identical in some way to a problem that was present yesterday.
Same as you, I'm also a beginner
This phrase is a comparison, saying that the speaker is in the same beginners' situation as the person they are addressing.
I'm in the same place
Here, it is stated that the speaker is in a location that is the same as a previously referenced location.