The absolute magnitude M, of a star or astronomical object is defined as the apparent magnitude it would have as seen from a distance of 10 parsecs (about 32.6 light years). The absolute magnitude of the Sun is 4.83 in the V band (yellow) and 5.48 in the B band (blue).
For example: The word vocabulary is derived from the Latin root wordâvocâ, which means 'word' or 'name'. Other words like advocacy, vocal and vociferous are also derived from the same root word. Hence, if you can recognize some root words, you will get a fair idea of many derived words.
1 [NEW!] Sports vocabulary : Words for popular American sports. [ 2 NEW!] Air Travel: Useful words for traveling on airplanes and through airports.  The Environment: Vocabulary related to environmental science and climate change.