Last Updated：2025/11/23

Used to indicate increase. / Used to indicate higher position or direction, literally or figuratively.

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up-

Source Word

up-

Prefix

morpheme

Used to indicate increase. / Used to indicate higher position or direction, literally or figuratively.

Japanese Meaning

増加や拡大を示す / 高い位置や方向、またはそれに付随する上向きの状態を示す（実際の向きだけでなく、抽象的な意味としても）

The up-regulation of the enzyme caused an upsurge in metabolic activity.

酵素の制御が増加し、代謝活性が急増した。

Sense（1）

Used to indicate increase.

Over time the engine's power was uprated.

Sense（2）

Used to indicate higher position or direction, literally or figuratively.

The uptake of tickets increased dramatically after the favorable review.