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Whilst vs Simultaneous - What's the difference?

whilst | simultaneous |

As a conjunction whilst

is while, at the same time.

As an adjective simultaneous is

occurring or transpiring at the same time.

whilst

English

Alternative forms

* whilest (obsolete) * whylst (obsolete) * whylest (obsolete)

Conjunction

(English Conjunctions)
  • (British, rare or literary in North America) While, at the same time.
  • * {{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)
  • , chapter=17 citation , passage=The face which emerged was not reassuring. It was blunt and grey, the nose springing thick and flat from high on the frontal bone of the forehead, whilst his eyes were narrow slits of dark in a tight bandage of tissue. […].}}

    Usage notes

    * Mostly restrained to use in . * Rare in North America and may be considered archaic, pedantic or pompous.

    References

    * (while) * *

    simultaneous

    English

    Adjective

    (-)
  • Occurring]] or [[transpire, transpiring at the same time.
  • *
  • As with the Lejeuneaceae, this pattern of massive speciation appears to be correlated with the Cretaceous explosion of the angiosperms and the simultaneous creation of a host of new microenvironments, differing in humidity, light intensity, texture, etc.

    Derived terms

    * simultaneously * simultaneity