Ruby on Rails Keywords

If you’re using Ruby on Rails to create your Web site or database, you need to know the keywords Ruby uses. Fortunately, you have access to the following table, which lists Ruby’s keywords:

alias	defined?	__FILE__	not	then
and	do	for	or	true
BEGIN	else	if	redo	undef
begin	elsif	in	rescue	unless
break	END	__LINE__	retry	until
case	end	module	return	when
class	ensure	next	self	while
def	false	nil	super	yield

dummies

Source:http://www.dummies.com/how-to/content/ruby-on-rails-keywords.navId-323192.html