| absence |
the fact or condition of being away or not present. |
| awareness |
the state or condition of having noticed something or being conscious of something. |
| crest |
a tuft of feathers, bone, or fur on an animal's head, or something that looks like this. The comb of a rooster is one kind of crest. |
| definitely |
without a doubt; certainly. |
| device |
an invention or machine used to perform simple tasks or something else made for a specific purpose. |
| disappoint |
to fail to do or give something expected or hoped for. |
| examine |
to look at closely and carefully. |
| exhibit |
a collection of things that are shown or on display for many people to look at. |
| factory |
a building or set of buildings where products are made by machines. |
| grime |
dirt clinging to or rubbed into a surface. |
| possessor |
one who has or owns something. |
| propeller |
a device used to make an airplane or ship move forward. A propeller is made of tilted blades that are attached to and spin around a hub. |
| release |
to set free. |
| responsible |
expected to take care of particular duties and jobs. |
| till1 |
until. |