Compass’s
The possessive form of compass is compass's.
There are two accepted forms for possessive singular nouns ending in s:Add an apostrophe (') after the existing s at the end of the word: compass'Add an apostrophe s ('s) after the existing s at the end of the word: compass'sExample:The compass' case is polished brass.The compass's case is polished brass.
The plural form of the noun compass is compasses.The plural possessive form is compasses'.Example: The compasses' cases are made of brass.
The plural of compass is compasses, and the plural posessive is compasses'(referring to more than one compass).
The possessive form of the word dictionary is dictionary's.
The singular possessive form is word's, for example the word's definition.
possessive form for the word holders: holders'
the possessive form of the word Cathie: Cathie's
possessive form of the word Cathi: Cathi's
possessive form of the word Congress: Congress'
possessive form of the word glass: glass'
The possessive form of the word "month" is "month's."