The symbol ː (the triangular colon), which marks long vowels in IPA. / The symbol ー, which marks long vowels in Japanese hiragana and katakana.

The punctuation mark "¿", which is placed at the beginning of questions in Spanish and, less commonly, Catalan.

plural of inverted question mark

(idiomatic, sports) fast to act or react

(grammar) A phenomenon where the subject of an embedded infinitival verb seems to appear in the superordinate clause, and, if a pronoun, is unexpectedly marked with objective case morphology.

(computing) A character indicating the endianness of a string of text; specifically, the Unicode character U+FEFF ZERO WIDTH NO-BREAK SPACE.

The emblem of a winged lion holding a Bible, representing the evangelist St. Mark and used as the symbol of Venice.

plural of byte order mark

plural of high-water mark

(Buddhism) Three characteristics of all phenomena: anicca (“impermanence”), dukkha (“suffering”) and anatta (“non-self”).