title: How to filter words from a list/series/data frame using the first letter as argument?
body: <p>Example:</p>
  <pre><code>list = [word, christmas, banana, jupyter] #it can be also a series or dataframe.
  </code></pre>
  <p>I want to select the words which start with &quot;W&quot; and &quot;C&quot; and put these words into a new list/series/data frame.</p>
  <p>I tried something like this and it doesn't work:</p>
  <pre><code>wc_words = []
  for word in list:
      if word.str.startswith(('W','C')):
          wc_words.append(word)
  </code></pre>