hexagon |
a flat, closed figure with six straight sides. |

indirect |
not in a straight line, course, or route. [1/3 definitions] |

intersection |
the point or place where two or more lines, roads, or other straight things meet. |

leap |
to spring into the air, moving straight up or to another position. [1/3 definitions] |

linear |
having to do with a line; straight. [1/2 definitions] |

octagon |
a flat closed figure with eight straight sides. |

parallelogram |
a flat closed figure with four straight sides. The opposite sides are parallel and equal to each other. |

pentagon |
a flat closed figure with five straight sides. [1/2 definitions] |

perpendicular |
straight up and down. [1/2 definitions] |

plane^{1} |
a flat surface on which any two points can be joined by a straight line. [1/4 definitions] |

plumb |
a small weight tied to a line. A plumb is used to measure the depth of water or to test if something is straight up and down. [2/5 definitions] |

polygon |
a flat, closed figure with three or more sides bounded by straight lines. |

pyramid |
a solid figure whose sides are triangles that meet at a single point. The base of a pyramid can be any flat shape with straight sides, such as a triangle or square. [1/3 definitions] |

quadrilateral |
any flat closed figure with four straight sides, such as a square or parallelogram. |

radius |
a straight line from the center to the edge of a circle or sphere. [1/2 definitions] |

rectangle |
a flat, closed figure with four straight sides, four right angles, and opposite sides parallel to each other. |

reed |
a tall grass with straight, jointed stalks that grows in low, wet areas. [1/2 definitions] |

right |
directly; straight. [1/21 definitions] |

rod |
a straight, thin stick or bar. [1/4 definitions] |

row^{1} |
things or people arranged in a straight line. [1/2 definitions] |

rule |
to mark with straight lines. [1/7 definitions] |