¹ talk verb

• to say words in order to express your thoughts, feelings, opinions, etc., to someone —often + to —often + about
• to have a conversation or discussion with someone —often + to —often + with —often + about
• to have a conversation about (something)

² talk noun

• an occurrence in which one person talks about something with another person : a conversation or discussion—often + about —often + with
• the act of talking formally about something before a group of people : a speech or lecture—often + on
• a formal discussion between two or more groups that are trying to reach an agreement about something—usually plural