VS2008 C#: most optimum way to remove multiple occurrences
<p>Lets say I have a collection of words such as follows:</p>

<p>{"hello", "world", "my", "hello", "world", "sam", "world"}</p>

<p>I would like to remove any multiples such that result would be like the following after parsing.</p>

<p>{"hello", "world", "my", "sam"}</p>

<p>How can I do that in <strong>most optimized way.</strong></p>
