AskDefine | Define simultaneously

Dictionary Definition

simultaneously adv : at the same instant; "they spoke simultaneously" [syn: at the same time]

User Contributed Dictionary



  1. Occurring at the same time.


occurring at the same time

Related terms

Extensive Definition

Simultaneity is the property of two events happening at the same time in at least one reference frame.
The noun Simult means a supernatural coincidence, two or more divinely inspired events that occur at or near the same period of time that are related to each other in both noticeable and unnoticeable characteristics [Latin simul, at the same time; see sem-1 in Indo-European Roots + English -taneous(as in instantaneous).
  • In mathematics, a system of equations or a set of simultaneous equations share variables; a solution is a set of variable values for which all these equations are satisfied together.
  • In marketing, simultaneity is one of the characteristics of a service which differentiates it from a product. It refers to the idea that the production and consumption of a service occur simultaneously, making it impossible to produce and store a service prior to consumption.
simultaneously in German: Gleichzeitigkeit
simultaneously in French: Simultané
simultaneously in Dutch: Simultaan

Synonyms, Antonyms and Related Words

all at once, all together, as one, as one man, at a blow, at a clip, at a stroke, at once, at one blow, at one jump, at one stroke, at one swoop, at one time, at that time, coincidentally, coinstantaneously, concurrently, contemporaneously, forthwith, in a chorus, in a hurry, in chorus, in concert with, in phase, in sync, in unison, isochronously, now, on that occasion, on the beat, per saltum, pronto, right away, right now, right off, straightaway, straightway, subito, synchronously, then, then and there, this minute, this very minute, together, uno saltu, with one voice, without delay
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