Arduino IDE built in "Dictionary" (f12 key not working) drop down menu gone?

You are still using the wrong keyboard shortcut. I'm going to tell you this ten times in hope it will get through this time:


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.


For some reason, you are stuck on Ctrl+P. That is the default shortcut of the "File: Open File..." command, and completely unrelated to the discussion we had here.

The correct keyboard shortcut is Ctrl+Shift+P (note the Shift). That is the keyboard shortcut to open the Command Palette.