What Does The Suffix 'Ion' Mean?

'Ion' is a suffix that is used with the words that can trace their origin in the Latin language and are denoting action or condition. You can found several words that have used the word as their suffix and prime among them are communion, opinion, allusion, fusion, legion, notion and union.
      
If we take the example of the word 'union' it is form of the two words 'uni' and the suffix 'ion'. The first word is used when you want to convey the idea of one, so the word is used when you want to convey then idea of taking things into one; the meaning of the word union itself says a lot about the use of the suffix 'ion'.

The suffix ion means to do