Comma

How to type it

Right middle finger. Introduced in Lesson 13: Bottom row: c and ,.

Common uses

• A comma separates items in a list, clauses in a sentence, and the parts of an address.
• In the United States, commas group digits in large numbers, as in 1,000,000.

Less common uses

• The word comes from the Greek komma, meaning a piece cut off.
• Much of Europe uses the comma as the decimal mark, so one and a half is written 1,5.
• CSV files use commas to separate the fields in each row.