Best meaning for the suffix -ion?

It's difficult to say definitively what the "best" meaning of the suffix "-ion" is, as it can convey several nuances depending on the word it's attached to. However, here are some of the most common meanings:

1. Action or process: This is perhaps the most frequent meaning of "-ion," often referring to the act of doing something or the process by which something happens.

* Example: "Construction" (the act of building)

* Example: "Erosion" (the process of wearing away)

2. State or condition: "-ion" can also indicate a state of being or a condition.

* Example: "Depression" (a state of low mood)

* Example: "Inflation" (a state of rising prices)

3. Result or product: In some cases, "-ion" signifies the result or product of an action or process.

* Example: "Production" (the result of manufacturing)

* Example: "Solution" (the result of solving a problem)

4. Abstract concept: "-ion" can also create abstract nouns, often representing an idea or concept.

* Example: "Freedom" (the abstract concept of being free)

* Example: "Revolution" (the abstract concept of significant change)

Ultimately, the best meaning of "-ion" will depend on the specific word it's attached to and the context in which it's used. It's important to consider the whole word and its meaning to understand the role of the "-ion" suffix.