There are 2 definitions of -'s in English:

-'s1

Pronunciation: /s, z after a vowel sound or voiced consonant, ɪz after a sibilant/

suffix

  • Denoting possession in singular nouns, also in plural nouns not having a final -s: the car’s engine Mrs Ross’s son the children’s teacher

Origin

Old English, masculine and neuter genitive singular ending.

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Word of the day mage
Pronunciation: māj
noun
a magician or learned person

There are 2 definitions of -'s in English:

-'s2

Pronunciation: /s, z after a vowel sound or voiced consonant, ɪz after a sibilant/

suffix

  • Denoting the plural of a letter or symbol: T’s 9's

Usage

There are a few special instances in which it is acceptable to use an apostrophe to indicate plurals, as with letters and symbols where s added without punctuation could look odd or be undecipherable ( dot your i’s and cross your t’s ; he rated a string of 9's.9 from the jury ). However, when forming plurals of regular nouns it is wrong to use an apostrophe, e.g. six pens not six pen’s . For further discussion, see apostrophe1 (usage).

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