Science
Very important in the progress or development of something or someone, because of solving a big problem or making a big improvement
Breakthrough
A mass of rock and earth moving suddenly and quickly down a steep slope
Landslide
An unfair personal opinion that influences your judgment
Bias
To bring your eyebrows together so that lines appear on your face above your eyes, in an expression of anger, disapproval, or worry
Frown
Doing, or willing to do, what you have been told to do by someone in authority
Obedient
A small device or tool that does something useful
Gadget
Person who is trained to give emergency medical treatment
Paramedic
Having lost your confidence or enthusiasm for something
Discouraged
A slow, noisy breath
Sigh
An advantage that only one person or group of people has, usually because of their position or because they are rich
Privilege
A commonly believed but false idea
Myth
Food which is not cooked or prepared in any way
Raw
The opinion that people have about how good you are
Reputation
A feeling of energetic interest in a particular subject or activity and an eagerness to be involved in it
Enthusiasm
The crime of intentionally starting a fire in order to damage or destroy something, especially a building:
Arson
A large model of a human
Dummy
A machine that produces elecrical power
Generator
The period of time in a person's life when they are developing into an adult
Adolescence
A structure where bees live, either built by people or made by the bees themselves
Hive
A film category which is set in America, embodying the spirit, struggle, and demise of the new frontier
Western
A soft, green or grey growth that develops on old food or on objects that have been left for too long in warm, wet air
Mould
To prepare yourself physically or mentally for something unpleasant
Brace yourself
To appear by coming out of something or out from behind something
Emerge
A long, low sound, like the threatening sound made by a dog
Growl
An idiom to express to like each other very much and to become friends very quickly
Get on like a house on fire