How do I select a specific word inside a TextFrame?

Question

I want to highlight a word inside a TextFrame, but I'm only able to select the entire frame.
I have tried something (and several related version) like this:
var textFrames:com.adobe.indesign.TextFrames = activeDocument.textFrames;
  for(var i:int = 0; i < textFrames.length; i++){
  var t:com.adobe.indesign.TextFrame = textFrames.item(i);
  var texts:com.adobe.indesign.Texts = t.texts;
    for(var j:int = 0; j < texts.length; j++){
      var text:com.adobe.indesign.Text = texts.item(j);
      app.select(text);
This selects the entire content of the area, instead of just a specific word.
How do I proceed? Thanks

Answer 1

To clarify: I dont know which TextFrame the string is within - hence i look through all frames.
I have tried implementing the suggested ideas - mainly doc.findText() as:
app.findTextPreferences.findWhat = word;
var w:Object = doc.findText();
The problem is the findText() returns object of all types, and I cannot figure how to get it working. Below is my current solution, working like a charm, though probably not the most efficient implementation.
public static function select(word:String):void{
  var app:Application = InDesign.app;
  var activeDocument:Document = app.activeDocument;
  if (!activeDocument){
  return;
  var textFrames:com.adobe.indesign.TextFrames = activeDocument.textFrames;
  for(var i:int = 0; i < textFrames.length; i++){
  var t:com.adobe.indesign.TextFrame = textFrames.item(i);
  var words:Words = t.words;
  for(var j:int = 0; j < words.length; j++){
  var selector:Word = words.item(j);
  if(selector.contents.toString() == word){
  selector.select();
  return;