• Mode refers to the physical channel of communication, such as speech or writing
• Blended-Mode Text and Intertextuality are important concepts in understanding language use
• Variations in language use and register include regional and social group variation
• Representation in language involves the portrayal of events and people, including gender representation
• Gender theorists like Lakoff, Fishman, Tannen, and Cameron have contributed to understanding language and gender

Overall, the topic covers variations in language use and how they are influenced by gender, challenging traditional assumptions and stereotypes. This knowledge provides valuable insights into the evolving nature of language and gender.