These Mac-only verbs script applications that support the App set of Apple events.
app.alertDialog - Display a message in an alert box.app.askDialog - Get input from the user via dialog box.app.bringToFront - Bring the application to the front.app.closeAllWindows - Close all of an application's windows.app.closeWindow - Close an application's window.app.confirmDialog - Display a confirmation dialog.app.countWindows - Count an application's windows.app.enableDialogs - Enable or disable dialogs.app.getErrorString - Get the text of the last error displayed by the application.app.getFilePath - Get the path to the document being displayed in the target window.app.getPicture - Get a PICT of the elements specified.app.getTargetWindow - Get the title of the target or frontmost window.app.getText - Get the text selected in the target window.app.getWindowPosition - Get the position of the target window.app.madeChanges - FInd out if the target window has been modified since it was last saved or opened.app.moveWindow - Move the target window.app.newWindow - Create a new window.app.nthWindow - Get the title of the nth window.app.openWindow - Open a file in a window.app.printWindow - Print a window.app.putPicture - Replace the selected items in the target window with a PICT.app.putText - Replace the selected text with new text.app.revertWindow - Revert a window to its last saved state.app.saveWindow - Save a document.app.selectAll - Select everything in the target window.app.selectWindow - Set a window as the frontmost or target window.app.setFont - Set the font.app.setFontSize - Set the font size.app.setTargetWindow - Set the target window.app.somethingSelected - Is anything selected in the target window?app.start - Launch an application if it's not already running.app.startWithDocument - Launch an application with a document if it's not already running.app.zoomWindow - Zooms a window.