Translation guide
The word 'potency' covers several distinct meanings in English: the strength or effectiveness of a substance (like a drug or alcohol), the ability of a man to have sex, and more abstractly, the power or influence of an argument or symbol. This guide breaks down these meanings and provides natural Japanese equivalents for each.
Describing how strong or concentrated a substance is, especially in medical, pharmacological, or everyday contexts.
The most direct and common translation for 'potency' in the sense of effectiveness of a drug or chemical. Used in medical and technical contexts.
The potency of this medicine is very high.
A more general word for 'strength' that can be used for potency in everyday conversation, e.g., alcohol strength.
This alcohol has a different potency.
Refers to efficacy or effectiveness, often used in clinical or research settings. More about whether it works than how strong it is.
The potency of the new drug was confirmed.
Referring to a man's sexual function or virility.
The standard term for sexual vigor or potency in men. Often used in phrases like 精力増強 (enhancement of sexual potency).
He feels his potency has declined.
A more clinical phrase meaning 'sexual ability'. Less common in everyday speech but clear in medical contexts.
Specifically refers to erectile potency. Used in medical or supplement advertising.
Describing the forcefulness or effectiveness of something non-physical, like a speech, image, or concept.
A versatile word meaning 'power' or 'force'. Can be used for the potency of an argument, symbol, etc. Often combined with other words.
His words have the potency to move people.
Specifically means 'persuasiveness' or 'convincing power'. Good for the potency of an argument.
Means 'influence' or 'clout'. Suitable for the potency of a symbol or idea in shaping opinions.
While 効力 can mean 'potency' in general, using it for sexual contexts would be unnatural and confusing. Use 精力 or 性的能力 instead.
sexual potency enhancer
A decline in sexual potency can occur with age.
This supplement is said to increase potency.
That argument lacks potency.
That symbol has great potency.