a very brief interval of time
a specific point in time
present time
at the moment
a time of excellence or prominence
She has her moments
formal importance in influence or effect
a matter of great moment
a stage in historical or logical development
one moment in the history of thought — T S Eliot
a tendency to produce motion, esp rotational motion about a point or axis
a measure of the tendency to produce rotational motion, equal to the product of a force and its perpendicular distance from a particular axis or point
[Middle English via French from Latin momentum movement, moment, from movēre to move]