What does 'lining' a painting mean?

Lining is a major treatment in paintings conservation, and should only be used when absolutely necessary

The Truth About How Fine-Line Tattoos Heal — See Photos

Restructure: Unpacking the Treatments of Two Lined Portraits

Restructure: Unpacking the Treatments of Two Lined Portraits

What does 'lining' a painting mean?

3 Simple Ways to Paint Thin Lines with Acrylic - wikiHow

Lining a painting on canvas - Romoe Network

Line - The Elements of Art

What are the Major Lines in Art? – Celebrating Color

What Is an Implied Line in Drawing?

What does 'lining' a painting mean?

Line in Art - Discover the Different Types of Line in Art