| A | B |
|---|
| concept | a general idea or thought |
| confused | mixed up or bewildered |
| copy | something that looks exactly like another |
| icy | made of, covered with, or looking like ice |
| impossible | not able to happen |
| improve | to make better |
| register | a book used to record information |
| relationship | a connection between people or things |
| rely | to trust or depend |
| rental | property available for rent |
| transport | to carry from one place to another |
| unable | not having the power, skill, or means needed to do something |
| underground | beneath the earth's surface |
| underneath | below or beneath |
