Idioms
Similes
Metaphors
Antonym
Synonym
100
A "rip off" is
Too expensive
100
As big as an elephant
Large, Huge
100
His words were cotton candy
Sweet
100
Dangerous
Safe
100
Hysterical
Funny
200
To be all ears.
to listen carefully to what someone
is about to say
200
As gentle as a lamb
Sweet, wouldn't hurt anyone
200
That coach is an ogre
Terrible, mean, brutal, salty
200
Unsure of something
Decided
200
Fall
Drop, sink
300
To Pig Out 
To eat ALOT
300
As quick as lightning
Fast!!
300
He is a walking dictionary
Know it all, smart
300
Artificial
Natural
300
Laugh
Giggle
400
Breaking the ice
To remove tension or awkwardness at
the beginning of a party or meeting
400
Like two peas in a pod
They are alike! Always together
400
The thunder was a mighty lion
Loud, roaring
400
Abundant
Scarce/Lack of
400
Obsolete
Old, out of date
500
Break a leg
Good luck.
500
As useless as a chocolate teapot
It won't work! Chocolate melts with hot tea!
500
Tom’s eyes were icy
Cold Hearted, mean
500
Rapid
Slow
500
Quiet
Peaceful, calm