アラビア数字[arabiasuuji] Arabic numeral
キリル文字[kirirumoji] Cyrillic character
ギリシア文字[girishiamoji] Greek character
羅馬字[roomaji] Latin alphabet
ロシア文字[roshiamoji] Russian character

異体字[itaiji] kanji variants
一字[ichiji] letter
一字千金[ichijisenkin] word of great value
一丁字[itteiji] single letter or character
一文字[ichimonji] straight line

悔改める[kuiaratameru] to repent
改まる[aratamaru] to be renewed
改めて[aratamete] another time
改める[aratameru] to change
改悪[kaiaku] deterioration

改印[kaiin] changing seals
改革[kaikaku] reform
改革案[kaikakuan] reform proposal
改革過程[kaikakukatei] reform process
改憲[kaiken] constitutional change

キリル文字[kirirumoji] Cyrillic character
ギリシア文字[girishiamoji] Greek character
ロシア文字[roshiamoji] Russian character
悪文[akubun] bad style
遺文[ibun] literary remains

一文[ichibun] (a) sentence
一文[ichimon] something insignificant
一文字[ichimonji] straight line
一文商い[ichimonakinai] (a) penny store
一文惜み[ichimonoshimi] stinginess

行けない[ikenai] wrong
行る[yaru] to send
オリエント急行[orientokyuukou] Orient express
カ行[kagyou] classification for Japanese verb with the dictionary form ending in "ku"
ガ行[gagyou] classification for Japanese verb with the dictionary form ending in "gu"

サ行[sagyou] classification for Japanese verb with the dictionary form ending in "su"
ザ行[zagyou] classification for Japanese verb with the dictionary form ending in "zu"
スパイ行為[supaikoui] espionage
タ行[tagyou] classification for Japanese verb with the dictionary form ending in "tsu"
ダ行[dagyou] classification for Japanese verb with the dictionary form ending in "dzu"