â¢ IDEA (noun). The noun IDEA has 5 senses: 1. the content of cognition; the main thing you are thinking about. 2. a personal view. 3. an approximate calculation of quantity or degree or worth. 4. your intention; what you intend to do. 5. (music) melodic subject of a musical composition. Familiarity information: IDEA used as a noun is common.
The two points on the earth's surface where the axis emerges are called the 'NORTH POLE' and the 'SOUTH POLE.' Any line pointing along the Earth's surface towards the North Pole is said to be pointing 'north.' Any line pointing along the Earth's surface towards the South Pole is said to be pointing 'south.' 'East' is at right angles to north in a ...
magnetic north The direction toward which the north-seeking arrow of a compass points. â¦ The magnetic north pole is the northern pole of the Earth's magnetic field and changes slightly in response to variations in the Earth's magnetism. The current magnetic north pole is located in the Arctic Islands of Canada. Compare geographic north. magnetic north