Unit 28 - Part 1
An aquarium is a building where fish and underwater animals are kept.
Ex: We took a trip to the aquarium and saw a scary shark.
/ˈɑːbətrəri/, /ˈɑːbɪtrəri/, /ˈɑːrbətreri/ adj.
If something is arbitrary, it is not based on any plan or system, so it seems random.
Ex: The classroom had many arbitrary rules that made me confused.
/ˌɔːtəbaɪˈɒɡrəfi/, /ˌɒːtəbaɪˈɑːɡrəfi/ n.
An autobiography is a true story of a person’s life written by that person.
Ex: I read an autobiography about my favorite entertainer.
A convention is behavior that is considered to be common or polite.
Dx: In the US, a popular convention is to shake hands when you meet someone.
If someone is gracious, then they are kind and helpful to those who need it.
Ex: The operator was gracious enough to help me find his number.
To improve something means to make it better.
Ex: He studied hard to improve his test scores from the previous year.
/ˈɪnsjʊleɪt/, /ˈɪnsəleɪt/ v.
To insulate something means to protect it from heat, cold, or noise.
Ex: People can conserve energy by insulating their houses.
To intrigue means to cause an interest in something or someone.
Ex: Her mysterious past intrigued her new friend.
Longevity is the ability to live for a long time.
Ex: Sea turtles have an amazing longevity.
To misplace something means to lose it.
Ex: I misplaced my wallet, and I didn’t find it until a week later.