Most writers prefer to place words referred to as such in italics or to underline them rather than to use quotation marks, but consistency in form is the golden rule.
When referring to a word’s form rather than its meaning, you can use quotation marks to draw the reader’s attention. Usually such a word is preceded by a term such as means, marked, specified, as, referred to as, the word, the phrase, entitled and designated.
Words being defined, French terms and foreign words are set in italics, and their definition or translation is placed in quotation marks:
© &var_tpsgcpwgsc;, &var_copyright_year;
TERMIUM Plus®, &var_databanq;
&var_tlstxt; – Writing Tips
&var_produbtb;