On 2013–04–20 Sietse Brouwer wrote:

> 1. how do I protect a single instance of a word against hyphenation?
> Does ConTeXt, like LaTeX, use \hbox{myfragileword}, or something
> different?

You can enclose it in vertical bars:

  |thiswordwillnotbehyphenated|

However, I'd prefer the new \unhyphenated command, it's declarative
and doesn't interfere with \asciimode.

Marco