In nouns it can show what case (e.g. nominative aka subject of sentence), Declension (e.g. 1st or 2nd), Number (e.g. singular or plural).
Here's an example (bold type is the example worked...
Latin has a number of enclitic particles, so called because they cannot stand alone but rather attach themselves to other words (Greek enklinein, "to lean on"). -Ve is one of these. It is translated...