by heart
/baɪ ˈhɑɹt/
UK: /baɪ ˈhɑːt/
by heart
English
Prep_phrase
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Definition
From unaided memory and in full detail.
Etymology
From Middle English by herte. Compare French par cœur (literally “by heart”), of which the English may be a calque.
Example Sentences
- "to learn something by heart"
- "to know something by heart"
- "He used to live in that town, and he still knows all the streets by heart."
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