A corporate suffix is the word at the end of the corporate name that indicates that it is a corporation such as Ltd., Limited, Corporation, Inc., Incorporated, etc. It doesn't make any legal difference as to which suffix you choose. When comparing your proposed name to existing corporate names, the mere change of the corporate suffix isn't enough to be registered for any of the Canadian jurisdictions.
Each jurisdiction only allows certain suffixes and our software only allows you to select the suffixes allowed by your jurisdiction that you are incorporating in.