moment

n. 1 very brief portion of time. 2 an exact point of time (i came the moment you called). 3 importance (of no great moment). 4 product of a force and the distance from its line of action to a point.  at the moment now. In a moment very soon. Man (or woman etc.) Of the moment the one of importance at the time in question. [latin: related to *momentum]

n. A minute portion of time; a point of time; an instant; as, at thet very moment.