that is to say

Adverb

that is to say (not comparable)

1. (conjunctive) In other words. Used to introduce a clarification, simplification, or explanation
   • One of the best things about works of music is that they are repeatable, that is to say that one can listen to the same work over and over without becoming tired of it.
   • Mrs. Severe's house, The Hollies, was the first in the road, as the road was generally regarded—that is to say, from the direction of the station.1923, Ernest Bramah [pseudonym; Ernest Brammah Smith], “(please specify the page)”, in The Eyes of Max Carrados, London: Grant Richards, →OCLC

   Synonyms:

   that is, i.e., better put, in other words, put differently, to put it another way, what this means is, which is to say