Closet NV's sizing chart provides general information, which can vary depending on style and brand.
SLEEVE: With elbow bent at 90 degree angle, measure from center back neck over shoulder, around elbow to mid point at back of hand.
BUST: With arms in a relaxed position at sides, measure torso circumference around the fullest part of bust.
WAIST: Measure circumference around the narrowest point of waist.
HIP: Measure circumference around the fullest point of hip / seat.
INSEAM: Measure from seat bone / base of crotch to ankle bone.