White down-pointing triangle symbol ▽

Windows

Tap Copy above, then press Ctrl+V where you want ▽.

Windows has no built-in shortcut for it. In Microsoft Word, type 25BD and then press Alt+X.

Mac

Press Control+Command+Space, search for “white down-pointing triangle” and double-click ▽.

That shortcut opens the Character Viewer, which has every Unicode symbol.

iPhone

Tap Copy above, then touch and hold where you want ▽ and tap Paste.

To type it from the keyboard, open Settings › General › Keyboard › Text Replacement, tap +, paste ▽ as the Phrase and add a Shortcut.

Android

Tap Copy above, then touch and hold where you want ▽ and tap Paste.

To type it from the keyboard in Gboard, open Gboard settings › Dictionary › Personal dictionary, tap +, paste ▽ and add a shortcut.

Linux

Press Ctrl+Shift+U, type 25bd, then press Space or Enter. This works in most GTK and IBus apps.

Word and Google Docs

Word: type 25BD, then press Alt+X.

Google Docs: open Insert › Special characters and search for “white down-pointing triangle”.