Full Stop or Period
1. Use a full stop at the end of a sentence:
The man arrived. He sat down.
2. Use full stops with abbreviations (in an abbreviation the last letter of the word and of the abbreviation are not the same):
Co. (Company)
etc. (et cetera)
M.P. (Member of Parliament)
3. Do not use full stops with contractions (in a contraction the last letter of the word and of the contraction are the same):
Ltd (Limited)
Dr (Doctor)
St (Saint)
The rule about abbreviations and contractions is not followed by everyone. Sometimes it is a question of style. The important thing is to be consistent.
1. Use a full stop at the end of a sentence:
The man arrived. He sat down.
2. Use full stops with abbreviations (in an abbreviation the last letter of the word and of the abbreviation are not the same):
Co. (Company)
etc. (et cetera)
M.P. (Member of Parliament)
3. Do not use full stops with contractions (in a contraction the last letter of the word and of the contraction are the same):
Ltd (Limited)
Dr (Doctor)
St (Saint)
The rule about abbreviations and contractions is not followed by everyone. Sometimes it is a question of style. The important thing is to be consistent.