Wigipedia

Lace Closure
A small lace piece (usually 5x5 or 6x6 inches) with hair attached that closes off a wig or sew-in. It’s placed at the crown or parting area to create a natural scalp appearance.

Lace Frontal
A larger lace piece (usually 13x4 or 13x6 inches) that goes across the entire front hairline from ear to ear. It allows for versatile styling, including parting in different directions.

Bleached Knots
The knots where hair is tied to the lace are lightened to match the scalp color, making the hairline appear more natural.

Pre-plucked Hairline
Hair along the hairline is thinned out in advance to mimic the natural density of a real hairline, reducing the need for additional customization.

Virgin Hair
Hair that has never been chemically processed, dyed, or treated. It is 100% natural and maintains its cuticle layer.

Raw Hair / Donor Hair
Hair collected directly from donors, completely unprocessed, retaining natural cuticles and texture. It’s considered the highest quality for wigs and extensions.

Machine-Sewn Wig
A wig constructed using a sewing machine, where wefts of hair are sewn onto a wig cap or lace base. It’s durable, secure, and often faster to make than hand-tied wigs.

Cap Construction
The design and structure of the wig base, including features like adjustable straps, combs, or elastic bands that help the wig fit securely.

Parting Space
The area of the wig where the hair can be parted naturally. Larger parting spaces (like in frontals) allow for more versatile styling.

Density
Refers to how thick or full the hair on the wig is, usually measured in percentages (e.g., 130%, 150%, 180%).

Baby Hairs
Short, fine hairs along the hairline, either naturally part of the wig or created during styling, used to mimic a realistic hairline.

Cap Size
The measurement of the wig base to fit different head sizes — small, medium, or large.