Apostrophe s or ss - English Language Usage Stack Exchange On the use of so-called 'zero genitive', marked by a simple apostrophe in spelling ('), as opposed to the 's genitive, Quirk, Greenbaum, Leech and Svartvik specify in A Comprehensive grammar of the English Language (pp 320 321) that:
How do I pronounce ss and s? - English Language Usage Stack . . . Always pronounce the "possessive 's" unless that would be a real tongue-twister So if a man with two mistresses wanted to speak of things he'd given to both of them, I'd advise him to drop the 's, rather than try to pronounce mistresses's with a straight face!
How do I express the plural of a letter in writing? with two Ss with two S's with two s's Ability to format permitting, and font suitably different between italic and roman, you could also italicise the first S to signify mention over use with two S s (Note extra space above due to how the formatting here works, not intended)
When to pronounce ‹s› as z in the middle of words? Possess and its derivatives are another exception; the middle "ss" is voiced to z The terminating "ss" is not Other miscellaneous exceptions: The -ss- in the American state name Missouri is also exceptionally pronounced z In raspberry, the p is silent and the [s] assimilates to the b , so is voiced to z