We will study how to use periods (.) in this lesson. Let's look at the different ways that we use periods when we write in English.

1. At the end of a sentence

• She is my sister.
• It is good.
• We used to go to school together.

2. After a single word

• Hello.
• Stop.
• Come.

3. For abbreviations

We only use these when writing.

Here is a list of the common abbreviations that everybody should know. These are used for people, streets, days, and months.

Doctor /Dr.	Street / St.
Road / Rd.	Avenue / Ave.
Boulevard /Blvd.	Monday / Mon.
Tuesday / Tues.	Wednesday / Wed.
Thursday / Thurs.	Friday / Fri.
Saturday / Sat.	Sunday / Sun.
January / Jan.	February / Feb.
March / Mar.	April / Apr.
June / Jun.	July / Jul.
August / Aug.	September / Sept.
October / Oct.	November / Nov.
December / Dec.

Note: The month of May does not have an abbreviation because it is only three letters.

4. Numbers

• I have $5.45.
• The price increased by 5.25%.
• It is 28.7 degrees Celsius.

Punctuation is essential for writing in English. Punctuation helps you express your thoughts, feelings, and ideas in a way that is easy for the reader to understand.