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Definition of rock-hard adjective from the Oxford Advanced Learner's Dictionary

rock-hard

adjective
 
/ˌrɒk ˈhɑːd/
 
/ˌrɑːk ˈhɑːrd/
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  1. extremely hard or strong
    • The ground is still rock-hard.
See rock-hard in the Oxford Advanced American Dictionary
Check pronunciation: rock-hard

Nearby words

trait
noun
 
 
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