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What Does CO Mean in Knitting?

CO means cast on.

Cast On · Techniques

Cast On explained

Creating the first row of stitches on your needle to begin a project. There are many cast-on methods; unless the pattern names one, any basic method will do.

How you might see it written

Patterns aren't always consistent. CO may also appear as co, or cast on. The converter recognizes all of these.

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