The wordKecap いろは (iroha) canbisa alsodipake beoge usedkeur to meanngartikeun "ABCsABC" oratawa "the basicsdasar" indina Basa JapaneseJepang.
AlthoughSanajan theJepang Japanese employ themake ''[[Heavenly stems]]'' forkeur rankrengking ordersalian besidesti bothangka theCina Chinesejeung andArab Arabicsaperti numeralsoge as well as thehurup Latin alphabet, the iroha sequence was used to note the rank ofdipake submarineskeur ofnganomeran thekapal Imperialselam JapaneseAngkatan NavyLaut duringJepang thesalila SecondPerang WorldDunia WarKadua. All long-range submarines had designations beginning with "I" (e.g., the largest submarine had "I400" painted on its conning tower), coastal submarines began with "Ro", and training or marginally usable submarines had "Ha".
