What meaning does the suffix "-ion" convey?

The suffix "-ion" indicates the process or action of something occurring. It is commonly used to form nouns that describe an act, process, or condition resulting from a verb. For example, in the word "formation," the suffix signifies the action or process of forming. This suffix often transforms a verb into a noun, capturing the essence of the action involved, which makes it essential in medical terminology where understanding processes and actions is crucial for accurate communication and comprehension of various conditions and treatments.