[Tex/LaTex] How/Where to find such special symbol/character

charactersextended-characterssymbols

I am developing a mobile app. In this app, I need some special characters and symbols, e.g. θ, ʒ, ʃ, dʒ, t͡ʃ I have found all I need except one symbol.

How can I write (or where can I find) a letter like that:

image

And also I want to know what is the best way of searching such symbols. What are they called?

Note: The symbol I look for is not single character.
I might be able to use it as I use ^ symbol (like â, ê).
What I mean is singleton symbol does not work in my case.
The symbol should be secondary symbol along with the letter.

Any help would be much appreciated.

Best Answer

Those symbols are in IPA:

\documentclass{article}
\usepackage{tipa}

\begin{document}

\textsubbridge{t}\quad
\textyogh\quad
\textesh\quad
\textdyoghlig\quad
\textteshlig

\end{document}

enter image description here

For the last one you might prefer

\texttoptiebar{t\textesh}

enter image description here

The characters are available in some OpenType fonts, for example FreeSerif. Compile the following with XeLaTeX or LuaLaTeX

\documentclass{article}
\usepackage{fontspec}
\setmainfont{FreeSerif}

\begin{document}

\textsubbridge{t}\quad
\textyogh\quad
\textesh\quad
\textdyoghlig\quad
\textteshlig\quad
\texttoptiebar{t\textesh}

\end{document}

enter image description here

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