Decreases
Reducing the number of stitches to make the knitting narrower. Used for necklines, sleeves, and raglan.
Explanation
Decreases are techniques used to reduce the number of stitches on the needle, making the knitting narrower. The most common decrease techniques are k2tog (knit two together), which slants to the right, and SSK (slip, slip, knit), which slants to the left. By combining these two techniques, you can create symmetrical decreases. Decreases are typically used for necklines, at the top of sleeves, and for raglan shaping.