why words different in many bibles

Description:

there have been many translations over the years, as Old Testament WAS first written in Hebrew and some Aramaic, and New Testament was written in Greek, then came translations into other languages.

Words also in different languages mean differ things??
The people changed some things and when the old and New Testament was recently written in Israel, the writer noted that so many different translations, – impossible without going back to the Greek in the New Testament.