Abbreviations are often used in letters. Why?

Abbreviations are often used in letters. They are short forms of words or phrases. By using abbreviations we can reduce space and save time. Such abbreviations are common in business and official/technical letters. 

Some of them are listed Below:

Abbrev. before Names:

Chi.   - Chiranjeevi
Kum. - Kumari
Mr. - Mister
Mrs. - Mistress
Messrs. - Messieurs
Dr. - Doctor
Er. - Engineer
Prof. - Professor
Smt. - Srimati
Sri - Sriyuth


Days:

Sun. - Sunday
Mon. - Monday
Tue. - Tuesday
wed. - Wednesday
Thurs.- Thursday
Fri. - Friday
Sat. - Saturday


Months:

Jan. - January
feb. - february
Mar. - Marth
Apr. - April
Aug. - August
Sept.- September
Oct. - October
Nov. - November
Dec. - December

Other Abbreviations:

amp. - Ampere
a/c - account
Cal. - Calories
C.C - Cubic centimetre
Cm. - Centimetre
F.O.R - Free on rail
ft. - Foot/Feet
gm. - Gram
h.p - Horse Power
hr. - Hour
Hz. - Hertz
In - Inch
Kg - Kilogram
Km - Kilometre
KW - Kilowatt
Lb - Pound
min. - Minute