Quotation Marks or Inverted commas( ‘ ‘ or ” “) – The single quotation marks is British-oriented while the double is associated with the Americans. However both are allowed provided one is consistent.
The following are the functions of the inverted commas:
1. It is used to mark or indicate a quotation: Achebe once said, ‘ Proverbs are the oil with which words are eaten’.
2. To show words used in special or technical sense, slang, vernacular, etc: So you mean you didn’t come with ‘kola’ for oga and you want to have your way? Note: Kola is either money or any gift in this sense.
3. To encolose names of songs, titles of poems, essays, stories, articles, etc.: My new paper is titled ‘A critical discourse analysis of the Oyo State gubernatorial debate’.