commacom‧ma /ˈkɒmə $ ˈkɑːmə/ ●●○ noun [countable] 
Word Origin
Word OriginWORD ORIGINcomma
ExamplesOrigin:
1500-1600 Latin ‘part of a sentence’, from Greek komma ‘part, clause’, from koptein ‘to cut’EXAMPLES FROM THE CORPUS
Thesaurus- A hyphen is an acceptable alternative to a comma.
- A semicolon following a prompt string is an acceptable alternative to a comma.
- Delete any extra spaces between the number and the comma. 11.
- I also saw two comma butterflies.
- Now there is no more loneliness comma.
- The 2 parameters should be separated by a comma or a hyphen.
- The next question is whether to use a colon, comma, or dash after the salutation.
- Unfortunately, most businesspeople go one of two ways-they either avoid commas completely or saturate every line.
THESAURUStypes of punctuation mark► apostrophe
Collocations the sign (') that is used to show that one or more letters or numbers have been left out, as in don’t, or used before ‘s’ to show that something belongs to someone or something, as in Mark’s dog
► brackets British English, parentheses AmE and BrE formal a pair of signs ( ) used for enclosing information that interrupts a sentence
► colon the sign : that is used to introduce an explanation, example, quotation etc
► semicolon the sign ; that is used to separate words in a list, or different parts of a sentence that can be understood separately
► comma the sign , that is used to separate things in a list, or between two clauses in a sentence
► hyphen the sign – that is used to join words or syllables
► dash the sign — that is used to separate two closely related parts of a sentence, especially in more informal English
► full stop British English, period American English the sign . that is used to mark the end of a sentence or the short form of a word
► exclamation mark British English, exclamation point American English the sign ! that is used after a sentence or word that expresses surprise, anger, or excitement
► question mark the sign ? that is used at the end of a question
► quotation marks (also inverted commas British English) a pair of signs ‘ and ’ that are put around words, especially to show that you are quoting what someone has said
WORD SETS► Letters & punctuationA, nounABC, nounalpha, nounalphabet, nounalphabetical, adjectiveampersand, nounapostrophe, nounasterisk, nounB, nounbeta, nounblock capitals, nounblock letters, nounbrace, nounbracket, nounbracket, verbC, nouncapital, nouncapital, adjectivecapitalize, verbcaps, cedilla, nouncircumflex, nounclause, nouncolon, nouncomma, nounconsonant, nounCyrillic, adjectiveD, noundash, noundelta, noundiacritic, nounditto, nounE, nounexclamation mark, nounF, nounG, noungamma, nounGothic, adjectivegrave, adjectiveH, nounhyphen, nounI, nounIPA, nounJ, nounK, nounL, nounletter, nounlower case, nounM, nounN, nounNHS, the, O, nounoblique, nounomega, nounP, nounparenthesis, nounperiod, nounpunctuate, verbpunctuation, nounpunctuation mark, nounQ, nounquestion mark, nounquestion tag, nounquotation mark, nounR, nounrune, nounS, nounschwa, nounscript, nounsemicolon, nounslash, nounsmall, adjectivespeech marks, nounsquare bracket, nounstar, nounstenography, nounstress mark, nounT, nountilde, nounU, nounumlaut, nounupper case, nounV, nounvowel, nounW, nounX, nounY, nounZ, nounzed, noun
COLLOCATIONS FROM THE CORPUSADJECTIVE► inverted
the mark (,) used in writing to show a short pause or to separate things in a list → inverted comma, punctuation mark· Attributes will normally be displayed within single inverted commas.· You can solve this problem by putting such terms in inverted commas when you first introduce them.· I put the word in inverted commas to highlight a mystique about parenthood.· They should be shown how to set out and punctuate direct speech, using inverted commas and commas.· Unfortunately in 1971 I was not protected from that most pernicious word by those inverted commas.
VERB► use· Some people like using commas and others prefer not to.· The next question is whether to use a colon, comma, or dash after the salutation.· This last result can be expressed in a more compact form using the subscript comma notation for space-time derivatives:.· They all agree that you should use a comma if the introductory word or words contain a verb.· They should be shown how to set out and punctuate direct speech, using inverted commas and commas.· She had a sense of how to use commas, but not periods.