verbs
adjectives
idioms
50

to allow or officially agree to something

approve

50

having or containing a lot of knowledge that is known by very few people

erudite

50

a controversial issue or situation that is awkward or unpleasant to deal with.  

a hot potato

90

to lower someone or something in rank or position

demote

90

clearly expressed and easy to understand, or (of a person) thinking or speaking clearly

lucid

90

something that is easy to do

piece of cake

110

to act as a warning or sign of a future event

  foreshadow

110

with many turns and changes of direction; not direct or simple

tortuous

110

someone very precious or dear

apple of eye 

210

to offer something by holding it out, or to offer advice or an opinion:

proffer

210

very twisted

convoluted

210

being the best in a competition

take the cake 

310

to join or unite to form a larger organization or group, or to make separate organizations do this

amalgamate

310

different from what is typical or usual, especially in an unacceptable way

aberrant

310

someone very precious or dear

apple of eye