diff --git a/share/man/man5/style.mdoc.5 b/share/man/man5/style.mdoc.5
--- a/share/man/man5/style.mdoc.5
+++ b/share/man/man5/style.mdoc.5
@@ -160,7 +160,7 @@
 \&.El
 .Ed
 .El
-.Ss Synopsis Formatting
+.Ss SYNOPSIS Section
 .Bl -dash -width ""
 .It
 Do not put whitespace between alternative parameters separated with a pipe
@@ -226,6 +226,27 @@
 are not stylized as they do not belong to the syntax of the
 .Fl -meet
 flag.
+.It
+SYNOPSIS sections may contain all kinds of relevant information
+other than utility invocation syntax, function call syntax,
+or device configuration.
+For example,
+.Xr rc.conf 5
+variables, sysctls, and loader tunables can be listed as well, e.g.:
+.Bd -literal -offset indent
+\&.Cd "options EXAMPLE"
+\&.Pp
+\&In
+\&.Xr rc.conf 5 :
+\&.Cd example_enable="YES"
+\&.Pp
+\&In
+\&.Xr loader.conf 5
+\&or
+\&.Xr sysctl.conf 5 :
+\&.Cd kern.example.%d.config
+\&.Cd kern.example.debugflags
+.Ed
 .El
 .Ss Quoting
 .Bl -dash -width ""