Englishfor English speakers
greengrocer
—
noun
a grocer who sells fresh fruits and vegetables
apostrophe
Noun
—
An apostrophe is a punctuation mark which is used to show that part of a word is missing, to show that something belongs to someone, or added after plurals of numbers, letters and abbreviations.
In the phrase "John's sentence", there is an apostrophe after John but before the "s" to show that the sentence belongs to John.