(chiefly UK) A marriage certificate.

Crosswise, linear indentations of fingernails.

plural of brake line

(automotive) A line that conveys fluid from a vehicle's brake pedal to the brakes when they are applied.

plural of Fraunhofer line

plural of Euler line

(geometry) A line that, for a given triangle, passes through several important points, including the circumcentre, orthocentre and centroid; an analogous line for certain other 2- and 3-dimensional geometric figures.

The direction of the progression of a dance, almost universally counter-clockwise around the floor.

(of a writer) Paid at the rate of a penny per line. / (of writing) Long-winded, verbose; superficial, of little literary value.

plural of washing line