3. (modifier) curved, crooked.
4. (noun) curve, curved line.
Kia kōhiti te marama, he ānau tōna hanga (PK 2008:19). / When the new moon rises its shape is a curve.
5. (noun) simple curve (maths).
Karekau tētahi wāhanga o te rārangi ānau e torotika, kotahi hoki te piko o te ānau. Ko ētahi ānau e huaki ana, ko ētahi e kati ana (TRP 2010:101). / No part of a simple curve is straight, there is only one curve in the line which can be open or closed (TRP 2010:101).