First, Download lingoes font file
Android default fonts can not display phonetic symbol.lingoes.ttf can, please download it.
Second, Put lingoes.ttf to assets/font
Last, Add "lingoes" font-family in css files under assets
@font-face { font-family: 'lingoes'; src:url('file:///android_asset/fonts/lingoes.ttf') format('truetype'); font-weight: normal; font-style: normal; }