Definition, Meaning & Synonyms
that is (to say)
Phrase
/ðæt ɪz tə seɪ/

Definition
A phrase used to clarify or explain something further.

Examples
- He is an expert in his field, that is, he knows a lot about his subject.
- We will meet at 5 PM, that is to say, right after work.

Meaning
It indicates that what follows is a rephrasing or elaboration of the previous statement.

Synonyms
- In other words
- That is to say
- Put differently