I am looking for ways to put tilde over regular text. In math mode, we can put tilde above letters by $\widetilde{ASK}$. Is there a way to do the same thing for regular text longer than three letters? I mean: not in math mode, how to do big tilde over texts? The questions being answered all require math mode.
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egreg
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Brian Ding
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The brute force method is to scale and position things. The primary advantage of brute force is that is is readily adjustable. Uses package graphicx for \scalebox. Note that this code DOES NOT REQUIRE MATH MODE, as requested.
This line of text sits above the tilde, and may clash without
using the raised strut, so you need to look closely at the result.\par
This line of text
\raisebox{0.5em}{\strut}\raisebox{0.2em}{\scalebox{3}{\char`\~}}\hspace{-1.3em}
has a big tilde.\par
Result:

\mbox{...}, even in math mode). – Werner Dec 07 '17 at 21:52\text{...}work too? – barbara beeton Dec 07 '17 at 21:55amsmath. – Werner Dec 07 '17 at 22:01\newcommand{\bigtilde}[1]{\ensuremath{\widetilde{\mbox{#1}}}}and thenText \bigtilde{stuff} textwithout worrying about math mode. Does that work for you? – Werner Dec 08 '17 at 19:00