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definition: 
having good quality;being well made;firm
sentence: 
He is a solid basketball player.
When heated this produces methane gas and a solid residue of sodium carbonate
difficulty: 
easy
toefl frequency: 
3
toefl classification: 
adverb: 
adjective: 
adverb sentence: 
adjective sentence: 
verb: 
solidify
verb sentence: 
The magma slowly solidifies and forms crystals
noun: 
noun sentence: