A-Line Skirt
A skirt that flares gently from a fitted waist to a wider hem, named for its resemblance to the letter A.
An A-line skirt is fitted at the waist and flares out in a straight, unbroken line to the hem — no gathers, no pleats, just a wider hem circumference than waist circumference, distributed smoothly across the panels. It's one of the most flattering, most forgiving silhouettes to sew because the flare hides a lot of small fitting imperfections that a fully straight skirt would show.
It's also, genuinely, one of the best first garments to draft yourself rather than buy as a pattern. From a basic straight skirt block, you just slash the front and back pattern pieces from hem to waist at a few points and spread them open by however much flare you want — no darts to solve, no set-in sleeve, just a waist finish and a hem. I usually go for two or three slash points per panel rather than one big pivot at the side seam; it distributes the flare more evenly and avoids a triangular, "trumpet" look at the hem.
Fabric choice changes the character more than the pattern does. The exact same A-line draft in a crisp cotton poplin stands away from the body with real structure; drape it in something soft and it collapses into something closer to a bias-cut flare. Both are nice — just know which one you're aiming for before you cut.