In LibreOffice the drop-down list is called a "combo box." When you a create a form, the combo box draws a drop-down menu on a single line, from which users select from a series of preset values ...

A drop-down list in a Microsoft Word document lets readers select from a predefined list, handy if you're building a form, quiz, or similar. Adding a drop-down list is fairly easy—here's how.

You can add a drop-down list in Google Sheets to better organize data within your spreadsheet. To add a drop-down list, you'll have to use the Data Validation function in Google Sheets.