You can search for a word in one of the main panels, for example the synonyms or definitions panels. Right-click in the dictionaries window and choose Search… to bring up a small search bar at the bottom of the screen. You can also press Command + f (Mac) or Ctrl + f (Windows and Linux). Occurrences of the string you enter in the search bar will be highlighted in the main panel. Click on the arrows to move back and forth between them. Click on the Done button to close the search bar. For the Combinations, Semantic field and Family dictionaries, the search bar is displayed at all times. Entering a string narrows the results to only those that contain it.