The near-close front unrounded vowel, or near-high front unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɪ⟩, i.e. a small capital letter i. The International Phonetic Association advises serifs on the symbol's ends. Some sans-serif fonts do meet this typographic specification.[1]
Prior to 1989, there was an alternate symbol for this sound: ⟨ɩ⟩, the use of which is no longer sanctioned by the IPA. Despite that, some modern writings still use it.
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↑Sans-serif fonts with serifed ɪ (despite having serifless capital I) include Arial, FreeSans and Lucida Sans. On the other hand, Segoe and Tahoma place serifs on ɪ as well as capital I. Finally, both are serifless in Calibri.