Alphabet Inc 5.75% 2066/02

An alphabet is a writing system that uses a standard set of symbols, called letters, to more or less represent particular sounds in a spoken language. Specifically, letters largely correspond to phonemes as the smallest sound segments that can distinguish one word from another in a given language. Not all writing systems represent language in this way: a syllabary assigns symbols to spoken syllables, while logographies assign symbols to words, morphemes, or other semantic units.