upstream

Pronunciation

• IPA ^(key): /ʌpˈstriːm/

• Audio (UK)

  (file)

Preposition

Preposition upstream

1. If $x$ is upstream from $y$, $x$ and $y$ are on or beside a river and the water moves from $x$ to $y$.

   Oxford is upstream from London on the River Thames.

   He found it very difficult to move the boat upstream against the river.

Antonyms

• downstream

Related words

• up
• stream