In one of my posts (Are "beaten" and "punched" interchangeable in some situations?) I said
"Alice was beaten to death."
"Alice was punched to death."
Do they mean the same?
I found lots of learners use the same expression, e.g. "Do the two clauses mean the same?", "Do these two sentences mean the same?", "they mean the same or not?", etc.
I also found lots of answerers use expressions like "mean the same thing", which has an extra "thing". For example, a nice answer says
"defined as" and "defined to be" both mean the same thing ...
Is that extra "thing" optional or necessary? In other words, are "mean the same" and "mean the same thing" interchangeable in any cases?