@deffn macro make-thread proc arg @dots{}
Apply @var{proc} to @var{arg} @dots{} in a new thread formed by
-@code{call-with-new-thread} using a default error handler that display
+@code{call-with-new-thread} using a default error handler that displays
the error to the current error port. The @var{arg} @dots{}
expressions are evaluated in the new thread.
@end deffn
@deffn macro begin-thread expr1 expr2 @dots{}
Evaluate forms @var{expr1} @var{expr2} @dots{} in a new thread formed by
-@code{call-with-new-thread} using a default error handler that display
+@code{call-with-new-thread} using a default error handler that displays
the error to the current error port.
@end deffn