All except for some previously mentioned set. / Every second/two; each alternate; the second of each pair in turn.

(arithmetic) Leaving no remainder when divided by.

Every other/two; each alternate.

Used other than figuratively or idiomatically: Once per second. / (figuratively) Very frequently; more frequently than is desired.

The entirety of something of duration.

A religious service, most commonly seen in the Anglican or Episcopal Church, that takes place in the early hours of the evening; originally, and sometimes still, an alternative name for vespers or a service combining vespers and compline.

So as to form a flat surface. / In a fair manner of distribution, giving the same amount or number to each; equally. / (mathematics) In a manner that leaves no remainder.

Always, frequently, forever. / Continuously, constantly, all the time (for the complete duration). / At any time. / In any way. / (informal) As intensifier following an interrogative word.

(epidemiology) Occurring at any time, occurring even but once during a timespan.

(dialectal and informal) Shortening of every