Definition of "back out" [back out]

• To reverse a vehicle from a confined space. (verb)
• To withdraw from something one has agreed to do. (verb)
• To undo a change. (verb)

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• "The deputies went back out the door, which was still open as Barry and Mr. Hindley worked."
• "Ms. Ling slipped her arm around Taylors shoulders and helped her back out into the hallway."
• "Upon hearing this good newsto which the word good was hardly sufficientI stripped down to my Sorel snow boots, stepped back out into the 5-degree air, and jogged around the house, barking my shins badly on a pile of lumber buried in the snow."