Practical/real time usage of Dictionary Data type?

Hi Anyone can talk about practical scenarios where dictionary should be used. Academy advised to use it for configurations across a process. Any information on real time projects.

with the option to access associative (by the key) the value Dictionaries give a great option to access items e.g. without taking care about the positional information (e.g. array / list index). Indeed often is this used close by activities with any config parameters. But it isnt the only usage.

e.g there are techniques in which a groupBy / Aggregation (e.g. SumUp) can be simulated with Dicitionaries
if data is collected / scrapped manually
and some more scenarios

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Hello Jayakumar,
In this video I have multiple examples with Dictionary:

Cristian Negulescu