In order to fully answer this question, what words are you talking about? Or in what context are you using?
color - colour favorite - favourite gray - grey
"worlds" or "words?
There are about 450 Languages spoken in India and about 700 different Native American languages. But there is no such language as "Indian".
There are many examples of different words that mean the same thing. Some examples of different words that mean the same thing are warm and hot and cold and freezing.
SAME.
Homograph = words that are spelled the same but have different meanings.Homophone = Words that are spelled differently and mean different things, but sound the same (type of homonym).Homonym = Words that mean different things but sounds the same. Can have different or the same spelling.
Humor, Labor, center, meter.
That depends on which tribe you mean. There were, and are, numerous native American languages, many with very different words for common things like family.
devoted, loving
Synonyms
to move
The term for words from different languages that look similar and mean the same thing is "cognates."