\usetypefile[freefont]

\usetypescript[freefont]
\setupbodyfont[freefont]

\def\Example{ABC abc 123\space}

\starttext

\rm \Example \bf \Example \it \Example \bi \Example

\tf\ss \Example \bf \Example \it \Example \bi \Example

\tf\tt \Example \bf \Example \it \Example \bi \Example

\stoptext