US /ˌikəˈnɑ:mɪkəl wɪθ ðə truθ/
・UK /ˌi:kəˈnɒmɪkəl wɪð ðə tru:θ/
Also, if you think that a colleague or maybe a client is not being entirely straight with you, what's the best thing to do in order to try and find out if they're being economical with the truth?
And so if you think someone isn't being entirely straight with you, just say, "Oh, can you email me about that?" and instantly you'll find out whether or not they're being economical with the truth.