begin/end might be more familiar. Some languages don't even have the equivalent of (Pascal's) "begin" since other keywords are already associated with starting a block.
A long time ago this type of thing ("make C look like pascal") used to be the subject of holy wars/trolling
#define BEGIN {
#define END }
There is, to this day afaict, a warning suppression option in VisualStudio for pre-processor macros with unbalanced braces that uses exactly this as an example.