French-English translations for c’est-à-dire

i.e.
us
The three U.S. states on the west coast (i.e., Washington, Oregon, and California) have mild seasonal variations in temperature (i.e., warm winters and cool summers
meaning
us
the meaning of life

namely
us
Some of the students — namely Paul, Alice and Jake — seem to have trouble with geometryThere are three ways to do it, namely the right way, the wrong way and the Army way
that is
that is to sayOne 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