backtracked; backtracking; backtracks
When you backtrack, you return somewhere you've already been, or retrace steps you've already taken. You might backtrack to find something you lost on your way down the sidewalk.
When you walk out the door and realize you must have put your keys down somewhere, you'll probably backtrack through your house, looking for them. You can also backtrack in a figurative way, changing an opinion or a stance on something: "The city promised to build a new library, but now that the budget is so tight I bet they'll backtrack" The original use of the word referred to a technique in fox hunting.
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