hieroglyph, pictograph

an emoticon

(computing) ghost character (kanji included in JIS X 0208 but of unknown origin)

corrupt characters or letters, especially from display or transfer through an inappropriate character set or encoding, e.g., •¶Žš‰»‚¯, which is a corruption of 文字化け

(orthography, typography) a minuscule (lower-case letter)

Latinization

Short for ラテン語. / Latin American, Latino

X-ray (short wavelength electromagnetic radiation) / X-ray (photograph made with X-rays)

Alternative form of X線

Cyrillization (putting text into the Cyrillic alphabet)