Subjoin vs Unite - What's the difference?

As verbs the difference between subjoin and unite

is that subjoin is to add something to the end; to append or annex while unite is to come or bring together as one.

(en verb)

To add something to the end; to append or annex

* Mayhew

We subjoin an engraving which will give the reader a far better notion of the structure than any verbal description could convey to the mind.

* subjoinder

To come or bring together as one.

The new government will try to unite the various factions.

If we want to win, we will need to unite .

I hope this song can unite people from all different cultures.

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