Ada Programming/Keywords/begin

The begin keyword in Ada is almost synonymous with the { in C/C++/Java. In the paradigm of structured programming languages, a keyword or symbol is often needed to delimit the beginning of the body from the element (i.e. if, elsif, for loop, while loop) to which it pertains.

Ada. Time-tested, safe and secure.
Ada. Time-tested, safe and secure.

For the case of subprograms, packages, tasks and blocks this word is begin.

For example,

procedure Some_Procedure is
end Some_Procedure;

The begin keyword is always closed with the end keyword. The opposite is not true in Ada.

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Wikibook edit

Ada Reference Manual edit

Ada Quality and Style Guide edit

Ada Keywords
abort else new return
abs elsif not reverse
abstract (Ada 95) end null
accept entry select
access exception of separate
aliased (Ada 95) exit or some (Ada 2012)
all others subtype
and for out synchronized (Ada 2005)
array function overriding (Ada 2005)
at tagged (Ada 95)
generic package task
begin goto pragma terminate
body private then
if procedure type
case in protected (Ada 95)
constant interface (Ada 2005) until (Ada 95)
is raise use
declare range
delay limited record when
delta loop rem while
digits renames with
do mod requeue (Ada 95) xor