conversation – n. a talk between two or more people, usually an informal one
original – adj. existing since the beginning
concept – n. an idea or principle
app – n. a program for a smartphone or other device that performs a special function
profile – n. a short description about a person
content – n. the information presented in different forms or media or on the internet
chat – n. a talk with someone in an informal way
relevant – adj. related or useful to what is happening or being talked about