This profile parameter checks field declarations in a Natural object against a set of critical Natural keywords.

Possible settings	ON	The check for keywords is performed. If a variable name defined matches one of these keywords, a syntax error is reported when the Natural object is checked or cataloged.
	OFF	No check for keywords is performed.
Default setting	OFF
Dynamic specification	yes
Specification within session	yes
Applicable statements	OPTIONS
Applicable command	KCHECK	Option of system command COMPOPT

Notes:

1. The section Performing a Check for Natural Reserved Keywords contains a list of the keywords that are checked by the KCHECK parameter.
2. The document Natural Reserved Keywords in the Programming Guide contains an overview of Natural keywords and reserved words.