What is the shortcut for "Find the word at caret" in Android Studio for Mac
The page you are referring to uses JavaScript to dynamically change content depending on reader's environment.

In case of OS X it changes to N/A meaning simply: Not Available (or "not applicable").

        &lt;span class="menupath"&gt;Edit | Find | Find Word At Caret&lt;/span&gt;.
    &lt;/li&gt;&lt;li class="list__item"&gt;
        Use
        &lt;kbd data-default="Ctrl+F3" data-default_for_gnome="Ctrl+F3" data-default_for_kde="Ctrl+3" data-default_for_xwin="Ctrl+F3" data-emacs="Ctrl+F3" data-jbuilder="Ctrl+F3" data-visual_studio="Ctrl+F3" data-netbeans_6.5="N/A" data-eclipse="Ctrl+F12" data-mac_os_x_10.5_="N/A" data-mac_os_x="&amp;#x2318;F3" data-eclipse_mac_os_x="N/A" data-intellij_idea_classic_os_x="N/A" data-xcode="N/A" data-resharper="N/A" data-resharper_osx="N/A"&gt;Ctrl+F3&lt;/kbd&gt;
        keyboard shortcut.


As for the shortcut itself you can create your own by going to System Preferences -> Keyboard -> Shortcuts.