using System;

using System.Collections.Generic;

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Dictionary<string, string> myLookup = new Dictionary<string, string>(); // Create this: new Dictionary<int, string>() and put it into MyLookup variable value; We are passing two different value in the KeyType(TKey)and (TValue) Valuetype; lookup words and get the definition 

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myLookup ["animal"] = "Not a Human.";             //lookup words and get this definition

myLookup ["fish"] = "Not a Human that swims.";    //lookup words and get this definition

myLookup ["animal"] = "us.";                      //lookup words and get this definition

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Console.WriteLine($"The definition of fish is {myLookup["fish"]}");

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Dictionary<int, string> employeeID = new Dictionary<int, string>();

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employeeID [001] = "Adam Willis";

employeeID [002] = "Shane Curtis";

employeeID [003] = "Dilip Reddy";

employeeID [004] = "Iman Yazani";

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Console.WriteLine($"The Employee is: {employeeID[003]}");