Real Dictionary

-'s
-'s is added to nouns to form possessives. However, with plural nouns ending in '-s', and sometimes with names ending in '-s', you form the possessive by adding -'.

-'s in American English 1
forming the possessive singular of most nouns and noun phrases and of some pronouns

-'s in American English 2
is

-'s in American English 3
us: used with the verb let in the contraction let's

-'s in British English
suffix: forming the possessive singular of nouns and some pronouns

-s
suffix: -s or -es is added to a noun to form a plural.

-s in American English
forming the plural of most nouns

-s in American English 1
suffix: a native English suffix used in the formation of adverbs

-s in American English 2
suffix: an ending marking the third person sing. indicative active of verbs

-s in American English 3
suffix: an ending marking nouns as plural ( boys; wolves), occurring also on nouns that have no singular ( dregs; entrails; pants; scissors), or on nouns that have a singular with a different meaning (clothes; glasses; manners; thanks). The pluralizing value of -

-s in American English 4
suffix: a suffix of hypocoristic nouns, generally proper names or forms used only in address

-s in British English 1
suffix: forming the plural of most nouns

-s in British English 2
suffix: forming the third person singular present indicative tense of verbs

-s in British English 3
suffix: forming nicknames and names expressing affection or familiarity

-s' in American English
forming the possessive plural of most nouns

-s' in British English
suffix: forming the possessive of plural nouns ending in the sound s or z and of some singular nouns

:S: in British English
noun: a sign or symbol used in a canon, round, etc, to indicate the entry of each part
symbol for

's in American English 1
suffix: an ending used in writing to represent the possessive morpheme after most singular nouns, some plural nouns, esp. those not ending in a letter or combination of letters representing an s or z sound, noun phrases, and noun substitutes, as in man's, women's

's in American English 2
contraction of: is

's in American English 3
contraction of: God's

's in American English 4
contraction of: us

's in American English 5
contraction of: as

S
S or s is an abbreviation for words beginning with s, such as 'south', 'seconds', and 'son'.
s. was a written abbreviation for shilling or , shillings in Britain before decimal currency was introduced in 1971.
variable noun: S is the nineteenth letter of the English alphabet.

S in American English
noun: the 19th letter of the English alphabet, a consonant

S in American English 1
Sabbath
the nineteenth letter of the English alphabet: from the Greek sigma, a borrowing from the Phoenician
abbreviation: satisfactory

S in American English 2
entropy
school
abbreviation: second
symbol: the 19th in order or in a series, or, when I is omitted, the 18th

s in British English
abbreviation for: Sweden (international car registration)
noun: the 19th letter and 15th consonant of the modern English alphabet
symbol for: satisfactory
symbol for: second (of time)

s. in American English
abbreviation: Sabbath
abbreviation: saint

s. in British English
abbreviation for: Saint
abbreviation for: see