Main Entry: com·men·tary

Pronunciation: \ˈkä-mən-ˌter-ē, -ˌte-rē\

Function: noun

Inflected Form(s): plural com·men·tar·ies

Date: 15th century

1 a : an explanatory treatise —usually used in plural b : a record of events usually written by a participant —usually used in plural
2 a : a systematic series of explanations or interpretations (as of a writing) b : comment 2
3 a : something that serves for illustration or explanation <the dark, airless apartments and sunless factories…are a sad commentary upon our civilization — H. A. Overstreet> b : an expression of opinion