<Tr> <Th> Upper case </Th> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> J </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> O </Td> <Td> </Td> <Td> Q </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> U </Td> <Td> V </Td> <Td> </Td> <Td> X </Td> <Td> Y </Td> <Td> Z </Td> </Tr> <Tr> <Th> Lower case </Th> <Td> </Td> <Td> </Td> <Td> </Td> <Td> d </Td> <Td> </Td> <Td> f </Td> <Td> g </Td> <Td> h </Td> <Td> i </Td> <Td> j </Td> <Td> k </Td> <Td> l </Td> <Td> m </Td> <Td> n </Td> <Td> o </Td> <Td> p </Td> <Td> q </Td> <Td> r </Td> <Td> s </Td> <Td> </Td> <Td> u </Td> <Td> </Td> <Td> w </Td> <Td> x </Td> <Td> y </Td> <Td> z </Td> </Tr> <P> Typographically, the basic difference between the majuscules and minuscules is not that the majuscules are big and minuscules small, but that the majuscules generally have the same height (although, depending on the typeface, there may be some exceptions, particularly with Q and sometimes J having a descending element; also, various diacritics can add to the normal height of a letter). </P> <P> There is more variation in the height of the minuscules, as some of them have parts higher (ascenders) or lower (descenders) than the typical size . Normally, b, d, f, h, k, l, t are the letters with ascenders, and g, j, p, q, y are the ones with descenders . In addition, with old - style numerals still used by some traditional or classical fonts, 6 and 8 make up the ascender set, and 3, 4, 5, 7 and 9 the descender set . </P>

What is meant by uppercase letter and lowercase letter