Knit 4 Together – K4 Tog + Tutorial
Putting together 4 stitches using the knit stitch is referred to as Knit 4 Together. The abbreviation is called K4 Tog.
Instead of knitting one stitch with the knit stitch, you are going to collect 4 stitches on the knitting needles and put with all 4 at the same time. This will convert 4 stitches to be only 1 by the time you are done. This is used in subtracting out stitches like a top of a hat and etc.
Follow the tutorial below if you need further help.