Ka'idar haruffa

Bisa ga ka'idar haruffa, haruffa da haɗin haruffa su ne alamomin da ake amfani da su don wakiltar sautin magana na harshe bisa ga tsarin tsari da dangantaka mai tsinkaya tsakanin rubutattun haruffa, alamomi, da kalmomin magana. Ƙa'idar haruffa ita ce ginshiƙi na kowane tsarin rubutun haruffa (kamar nau'in Ingilishi na Latin haruffa, ɗaya daga cikin mafi yawan nau'ikan tsarin rubutu da ake amfani da su a yau). A fagen ilimi, an san shi da lambar haruffa.Cummings, D. W. (1988). "The Short Word Rule". American English Spelling: An Informal Description. JHU Press. pp. 87–89. ISBN 978-0-8018-3443
Manazarta