卍字[manji] swastika (esp. a counterclockwise swastika as a Buddhist symbol)
卍巴[manjitomoe] falling in swirls

卍刀[mantou] ninja weapon disguised as a pair of garden shears

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