foe and opponent
Some words that mean the same as together would be assembled or united. You could also use grouped or connected.
I would say that it is very close in meaning to, "The enemy of my enemy is my friend," meaning that people who have a common enemy can find it very easy to put aside their differences and work together.
=I would say clone=
There are a number of words you could use that would have the same meaning as fighting. You could use arguing for example.
words that mean the same as also
Synonyms are words that mean the same or close to the same thing. Some synonyms for the word "walks" would be: strolls, meanders, steps.
Twins, triplets, quadruplets would be the words you seek.
The general term for different words that mean the same thing is "synonyms". When the words also sound alike (as with the archaic "quire" and modern "choir"), they are considered variant spellings of the same word.
I would think that things that mean the same as unique are the following: different, unusual, rare, one, uncommon.
Some words are sanitation and sanitize but they mean the exact same thing.
Generous or noble would be other words that mean the same as magnanimous.
A couple of examples would be to expire or to pass away.