that's why is not in our dictionary (yet). Here's what it could mean:
Confidence: high
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phrase
Example Sentences
Examples are provided to illustrate usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Villarreal: This one doesn’t have a tragic ending, and that’s why I want it.
From Los Angeles Times • Jun. 4, 2026
So forgive me when I say that's why hair matters so much.
From BBC • Jun. 3, 2026
Thesaurus
Possible Synonyms
Words in our thesaurus
other words
- which explains...
- and that's the tea
- so there you have it
Possible Antonyms
Words in our thesaurus
other words
- for no reason
- just because
- plot twist:
- despite that
- in spite of this