Kinship and descent

In the context of kinship and descent, an affine is a relative by marriage—an "in-law" in colloquial usage. The term can also refer to groups linked through marriage, such as clans. See affinity.

Mathematics

For uses in mathematics see:

• Affine transformation
• Affine combination
• Affine geometry
• Affine space
• Affine group
• Affine representation
• Affine variety
• Affine scheme
• Affine cipher
• Affine connection (Christoffel symbols, connection coefficients)