SYSML2 — Do not use abbreviations for key word in SysML v2/KerML textual concrete syntax

I would like to recommend, that abbreviations are not used in key words for the SysML v2 textual notation (resp. KerML). A good example is the key word "def" instead of "definition".
Why it is here an abbreviation and other (longer) key words are not?
To make the textual notation more consistent for users, eliminate all abbreviations and write it out.