jawbreaker
US /ˈdʒɑːˌbreɪ.kɚ/
UK /ˈdʒɑːˌbreɪ.kɚ/
1.
a very large, hard candy that is difficult to chew and lasts a long time in the mouth
:
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The child spent an hour trying to finish the jawbreaker.
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Be careful not to chip a tooth on that jawbreaker.
2.
a word that is very long and difficult to pronounce
:
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That scientific term is a real jawbreaker.
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She struggled with the jawbreaker of a name.