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upstream

upstream

32 3.5
Towards the source of a river, against the flow
  • adverb
  • /ˌʌpˈstriːm/
translation icon : río arriba
  • Cedar Bridge sat fifty yards upstream from and parallel to the new road and its concrete bridge.
  • swim upstream
  • fish migrate upstream
  • migrate upstream

You actually start to roll upstream.

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Examples

  • The worst of the rains fell on a narrow band just upstream from us.

    Fiction book (1995)
  • An alternative is to direct policies further upstream in the pollution process.

    Academic text (2003)
  • But in general, cities have been built in a way without much thought to the management of land upstream to maintain water quality and supply.

  • Have them glass this river, upstream and down.

  • Why do salmon swim back upstream where it all began?

  • Reaching the river, he turned upstream, toward Harvard and the Charles Hotel.

    Fiction book (1995)
  • However, Egypt is being increasingly challenged as the water needs of other countries upstream are growing.

    Academic text (2008)
  • Where the canyon narrowed, the train rounded a slight curve and headed upstream into the sunlight.

    Fiction book (1990)
  • The salmon always swims upstream to the place of its birth to spawn and then die there.

  • If we can get to it, we just follow it upstream back to the construction site.

Synonyms

upriver
vsupstream
19 4.1

Toward the place where a river starts and against the water flow

is the general term for direction toward any source or against a current
upcurrent
vsupstream
7.2

Being near the start of a river or stream

is broader, applying to direction toward any source or against flow
upline
vsupstream
7.9

Toward the source of a river, pipe, or system

is more specific to natural water flow direction rather than systems

Antonyms

38 2.7

In the direction a river or stream flows, away from its start

How Upstream

headwater
  • Specialized
6 7.2
upstream
32 3.5
midstream
7 4.1
downstream
38 2.7

Surface Forms

upstream positive

Morphology

upstream = stream (transparent) = up + stream

The meaning is a straightforward compound 'up' + 'stream' denoting direction toward the source of a stream. [Postprocessing: moved 'up' from base_words to prefix]

Etymology

Upstream is made of up ('toward the source') and stream ('a river'). So to go upstream is to move against the current, toward where the river begins.