A length of some object.

One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion.

(mathematics) A portion or a straight path between two points that is the shortest distance between them, as well as the part of a circle between its circumference and a chord, the part of a sphere cut off by a plane, or any of the pieces that constitute an order tree in topology.

(sciences) A discrete unit of speech in phonology, a portion of an organ derived from a single cell in botany, and one of several parts of an organism with similar structure arranged in a chain in zoology.

(broadcasting) A part of a broadcast program, devoted to a topic.

(computing) An Ethernet bus.

(computing) A region of memory or a fragment of an executable file designated to contain a particular part of a program.

(travel) A portion of an itinerary: it may be a flight or train between two cities, or a car or hotel booked in a particular city.

(transitive, intransitive) To divide into segments or sections.