Definitions

1. verb

to use or insert an apostrophe in writing, especially in forming plurals of nouns that end in -s.

“She chose to apostrophise the company name instead of using an abbreviation.”

2. noun

the act of using or inserting an apostrophe, especially in forming plurals of nouns that end in -s.

“The linguist studied the apostrophisation of various words in the English language.”