A device, machine, or piece of equipment, especially an electrical one that is used in the house, such as a cooker or washing machine
APPLIANCE
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RESPOND
Any basic discrete device or physical entity in an electronic system
ELECTRONIC PARTS
A person specially trained to design and build machines, structures, and other things, including bridges, roads, vehicles, and buildings
ENGINEER
Very unusual or remarkable
EXTRAORDINARY
Being what it appears to be and not false
REAL
An expert in science, esp. one of the physical or natural sciences
SCIENTIST
The necessary items for a particular purpose
EQUIPMENT
To watch (someone) secretly
SPY ON
to (cause something to) grow or change into a more advanced, larger, or stronger form
DEVELOP
To get and keep things of one type such as stamps or coins as a hobby
COLLECT (verb)
A member of any of the races of Homo sapiens; person; man, woman, or child
HUMAN BEING
A machine, usually with wheels and an engine, used for transporting people or goods, especially on land.
VEHICLE
to make (something) better
IMPROVE
To cause (a person or animal) to do what you want
CONTROL