What is Ctrl + ↑   Shift + ← keyboard shortcut for?

Audacity - Selection Contract Left  

GoldWave - Moves the finish marker left.  

Opera - Previous  

Ace Editor - Select word left  

Adobe Acrobat 2017 (Windows and Unix) - Deselect previous word (with Select tool selected)  

CudaText 1.88.3 - Go to previous word, select  

LibreOffice Writer - Selecting to the left word by word  

Microsoft FrontPage - Go to the beginning of a word.  

Microsoft FrontPage - Select or unselect one word to the left.  

Microsoft Word 2019 - Extend a selection to the beginning of a word  

Most used text editing - or Right Arrow Keys – Select words – keep pressing the arrow keys to select additional words.  

Nuance Power PDF - Read previous paragraph  

OneNote for the web - Left one word  

Adobe Lightroom Classic - Go to first page  

Adobe Premiere Pro (Windows) - Trim Backward Many  

Adobe XD (Windows) - Left  

HitFilm - Move playhead back by 10 frames  

Navisworks Freedom 2020 - Arrow   Takes you to the previous redline tag.  

Pinnacle Studio 22 - Expand word selection left  

Terminator - Move parent dragbar left  

Atom (Windows) - native!  

Atom (Windows) - pane:move-item-left  

Atom (Windows) - editor:select-to-beginning-of-word  

AWS Cloud9 IDE (Windows) - Select Word Left  

Delphi - Selects the word to the left of the cursor  

FileMaker - Beginning of previous word  

Free Pascal IDE - Extend selection one word to the left  

Microsoft Visual Studio 2017 (All shortcuts) - Arrow Edit.SizeControlLeft  

Microsoft Visual Studio 2017 (All shortcuts) - Arrow Edit.SizeControlLeft  

Microsoft Visual Studio 2017 (All shortcuts) - Arrow Edit.WordPreviousExtend  

Microsoft Visual Studio 2017 (All shortcuts) - Arrow Format.AlignLefts  

Microsoft Visual Studio 2017 (All shortcuts) - Arrow Image.PreviousRightColor  

Microsoft Visual Studio 2017 (All shortcuts) - Arrow Edit.SizeControlLeft  

Mode SQL Editor (Windows) - Select word left  

PyCharm 2018.2 - Move the caret to the previous word, selecting it.  

SQL Server Management Studio (SSMS) - Extend the selection one word to the left  

Valentina Studio - Move Word Left Extending Selection  

Chromebook and Chrome OS - Select previous word or letter  

BSPlayer - Decrease audio delay  

mpv - Adjust timing to previous subtitle  

PotPlayer 1.7 - Previous keyframe  

Kleopatra 3.1.8 - Move tab left  

Edraw Max 9.4 - Rotate the selected shapes left  

FL Studio 20 - Shift Steps Left  

LibreOffice Impress - Selecting to the left word by word  

Microsoft Access 2019 - Change the selection by one word to the left  

Microsoft Access 2019 - Change the size of the selection by one word to the left  

Microsoft PowerPoint 2019 (Creating presentations) - Select to the beginning of a word  

REAPER - View: Move cursor left to grid division  

REAPER - Edit: Move notes left one pixel  

REAPER - Edit: Move notes left one pixel  

Sumatra PDF - Open previous document in the directory  

The Bat! - Move out  

Traktor Pro 3 - Duplicate track Deck B (Deck A)