"affine" - key terms from Wikipedia

affine
affine	combination
affine	combinations
affine	connection
affine	dynkin diagrams
affine	function
affine	geometry
affine	group
affine	hyperplane
affine	invariants
affine	mapping
affine	plane
affine	quantity
affine	scheme
affine	shape adaptation
affine	space
affine	space over
affine	span
affine	subspace
affine	texture mapping
affine	transformation
affine	transformations
affine	varieties