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.
English Vocabulary Derived from Greek. Many English language words come from ancient Greek. In this section of Enhance My Vocabulary, you'll find many examples of Greek words and the English words derived from them. This is not an exhaustive list but will give you a good feel for the Greek roots of English.