that is to say

US /ðæt ɪz tə seɪ/
UK /ðæt ɪz tə seɪ/
"that is to say" picture
1.

أي, بمعنى آخر

used to introduce a clarification or explanation of a preceding statement

:
He is a polyglot, that is to say, he speaks many languages.
إنه متعدد اللغات، أي يتحدث لغات عديدة.
The event is scheduled for next Tuesday, that is to say, October 26th.
الحدث مقرر ليوم الثلاثاء القادم، أي 26 أكتوبر.