Colon(:)

편지의 인사말 다음에서 쓰임. After a salutation

Dear Ms. Manners:

 

공식적인 소개 말 할 때 쓰임. As Formal Introduction

The author of The Nature conservancy makes this alarming claim: By the Year 2000, 20percent of all the earth's species could be lost forever.

 

강조하기 위하여 쓰임. For Emphasis

By the year 2000, immunologists say it may be possible to prevent one of our most chronic and painful diseases: rheumatoid arthritis.

 

시간을 나타내는 숫자 사이에서 쓰임. Between Numerals Indicating Time

During a 1988 beach cleanup along 300 miles of the Gulf shoreline, 15,600 plastic sixpack rings were found in the three hours between 9:00 a.m. and 12:00p.m.