Bust - Across the largest part of your bust. Measure horizontally
Underbust - Directly beneath your bust. Measure horizontally
Hip - Across the largest part of your hips/bottom. Measure horizontally.
Waist - The smallest point of your waist line. Measure horizontally.
Armhole - Bottom on under arm to top of shoulder. Mesure vertically.
Bicep The largest part of your upper arm
Sleeve length - Length from shoulder to wrist
Shoulder to Bust From the middle of your shoulder to the middle of the bust (nipple)
Shoulder to Shoulder (Front) - Outer point of left shoulder to outer point of right shoulder on front of body.
Shoulder to Shoulder (Back) - Outer point of left shoulder to outer point of right shoulder on back of body.
Underbust to Top of Bust - length from under bust point to top of bust. Measure verticaly.
Shoulder to Waist - From middle of shoulder to bust.
Shoulder to Floor - Directly from shoulder bone to the floor. Measure vertically.