Here's why:
* Context matters: The abbreviation might differ depending on the specific field or context.
* Length: "Suppression" is a relatively long word, and abbreviations often aim for brevity.
Possible Alternatives:
* Supp. might be used in some contexts.
* Suppress. could be used in a more formal setting.
* S. might be used as a shorthand in informal writing.
Best Practice:
If you need to use an abbreviation, make sure it's clear and unambiguous in the context of your writing. If in doubt, spell out the word "suppression."