conversation – n. an informal talk involving two people or a small group of people
lecture – v. to talk to (someone) in an angry or serious way
possessive – n. relating to a word or a form of a word that shows that something or someone belongs to something or someone else
rumor – n. information or a story that is passed from person to person but has not been proven to be true
polite – adj. having or showing good manners or respect for other people
formal – adj. suitable for serious or official speech and writing
informal – adj. having a friendly and relaxed quality
grammar – n. the set of rules that explain how words are used in a language