Dissociation vs. Ionization: What's the Difference in Acids and Bases?

[Any Help]

Why we always say that acid dissociates in water while bases ionizes in water
knowing that both gives ions?
What is the difference between dissociation and ionization in this field?

 

[Borek]

Why we always say

I have not noticed.

 

[Any Help]

I have not noticed.

In the Arrhenius theory of acids and bases,check this site:
https://www.google.com.lb/url?sa=t&...theory&usg=AFQjCNF4jc36CIrUR7_DPPKqJRnJ8uycXQ

 

[Borek]

One site is not a proof that "we ALWAYS say" something.

As far as I am aware in this context "dissociation" and "ionization" are often used interchangeably, and neither has a distinct meaning.

To some extent it makes a bit more sense to speak about ionization of NH₃ than about dissociation, as it reacts with water producing ion but doesn't dissociate per se (as opposed to the acetic acid for example). But there is no rigor in using these terms.