: the following or immediately preceding word or word group may express the intended meaning more understandably or more accurately than a previous word or word group — used to introduce or accompany an explanation or correction
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that is (or that is to say)
a formula introducing or following an explanation or further clarification of a preceding word or words
androcentric-that is to say, male-dominated-concepts | He was a long-haired kid with freckles. Last time I saw him, that is
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that is (or that is to say)
1
— used when giving more accurate or specific information about someone or something that was just mentioned
We–that is to say my wife and I–will be attending the wedding.
2
— used when giving information that affects something previously mentioned
We plan on going to the concert–that is, if tickets are still available.
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Main Entry: ↑that
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used to say what sth means or to give more information
•
He's a local government administrator, that is to say a civil servant.
•
You'll find her very helpful— if she's not too busy, that is.
Useful english dictionary. 2012.