Lee say it again. Chi means Power.
OK. So, what does "power" mean? Hitting hard? Control of a fight? Electrical Power? Political Power? Military Power? Or maybe magical Power?
The term power may have even more definitions and connotations than "Qi/Chi/Ki." legs
If it's in terms of "power" as in "force," as in an application of energy in a physical sense, than what is Chi aside from an effective use of your legs, hips, core and limbs? In that case, it sounds like "Chi" just means "sound application of body mechanics."
Basically, "Chi" is either just an translation of one of a variety of basic English terms such as "sports physiology" or "bio-mechanics" or "mental focus" or "you've done a good job of training specific actions into your neurology", or it's something supernatural which has never been documented, demonstrated, or even reliably witnessed, and which is largely simulated through a combination of self-deception, wishful thinking, and outright charlatanry.
If we're going to say that "Chi" is "Power" in the sense of applied biomechanics that is too complex to really do justice to in casual conversation then sure, we can all discuss "Chi," although I think I and others might still use other more specific terms.
If we're going to say that "Chi" is "Power" in terms of focus, control, and awareness of the situation, then again, sure, we can all discuss examples of that, although again I think some of us may use other better defined terms.
If we're going to say that "Chi" is "Power" in the sense of, well, most people's understanding of the term chi, then saying that "Chi is Power" is at best vague. I think most English translations of the word are probably more like "vital essence," "Life force," or "spiritual energy."
Let's glance at the Wikipedia article on Chi, the term "power" shows up exactly five times:
1. As part of the word "willpower" referencing ways to control Chi.
2. Once as part of the term "feats of power," regarding things like spears to the throat, etc, which are noted as also being explainable through basic biomechanics.
3. In the title of a cited reference,
The Chi Revolution: Harnessing the Healing Power of Your Life Force.
4. Once as part of the term "Qigong Empowerment," again in the title of a cited reference.
5. Finally, as the name of an author, John Powers.
The concepts listed as being similar to Chi include prana, pnuema, mana, lüng, ruah, and The Force, all of which are spiritual or fantastical, most of which are religious, none of which are particularly synonymous with "power."
So, I would say that the consensus is perhaps not entirely solid that "power" is the best, or even a particularly viable translation of the concept of "Chi."