Word

頭字

かしらじ
first letter; first letters; initial
Word

添字

添え字
そえじ
subscript; index
Word

文字数

もじすう、もじかず
number of characters; number of letters; word count
Word

英数字

えいすうじ
alphanumeric character
Word

用字

ようじ
using characters
Word

略字

りゃくじ
simplified character (i.e. kanji); acronym; abbreviation
Word

字音

じおん
Japanese pronunciation of a kanji (based on adopted Chinese pronunciations)
Word

空白文字

くうはくもじ、くうはくもんじ
space character
Word

十字に

adv
じゅうじに
crosswise
Word

8の字

八の字
はちのじ
figure eight; figure of eight; shape of "hachi", the kanji for eight