字母

letter (of the alphabet) / CL:個|个[ge4]

letter / symbol / character / word / CL:個|个[ge4] / courtesy or style name traditionally given to males aged 20 in dynastic China

mother / elderly female relative / origin / source / (of animals) female

alphabet

capital letters / uppercase letters

Latin alphabet

lowercase (letters)

Greek alphabet

phonetic letters

hangul, Korean phonetic alphabet / Korean letters

rune

thirty six initial consonants of Song phonetic theory

word that contains one or more letters of an alphabet (e.g. HSK, PK, WTO, PO文, PM2.5, γ射線|γ射线[γ she4 xian4])

alphabetical order