Should Co have a period?
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Simply so, should Ave have a period?
Occasional Moderator. In BE, abbreviations generally donot require punctuation. The middle path is, as has beensuggested, to include a full stop ( period ) if theabbreviation does not include first and last letters - So St and Ave have no punctuation just because they areabbreviations.
Also Know, do you use periods when abbreviating states? Traditional abbreviations for states andprovinces begin with a capital letter and end with a period .The two-letter postal service abbreviations are all capitals withno periods . They are not set apart by commas. They are used only with addresses on letters, envelopes, and packagesto be mailed.
One may also ask, do you put periods in acronyms?
There is no strict rule on using periods (fullstops) in acronyms . You don't see N.A.S.A, B.B.C, orN.A.T.O often because they are so popular/familiar. However, you might have to put the periods if an acronym you use is not that familiar withreaders.
Do you use two periods in a sentence ends in an abbreviation?
This one is simple enough: never double up periods . If a statement ends with “etc.”the period in the abbreviation does double duty, serving as the full stop to end the sentence . If,however, you need another mark of punctuation after an abbreviation , you can put it after the period .