potency

noun

po·​ten·​cy ˈpō-tᵊn(t)-sē 

plural potencies

1

a

: force, power

b

: the quality or state of being potent

c

: the ability or capacity to achieve or bring about a particular result

2

: potentiality sense 1

Synonyms of potency

• power
• strength
• energy
• muscle
• capacity

Examples of potency in a Sentence

The potency of her words changed many minds in the audience that night.

Any vitamin of high potency should only be taken in the proper dosage.

Recent Examples on the Web

Black and Oolong Teas While green teas offer the highest antioxidant potency among tea varietals, black and oolong teas still contain significant amounts of polyphenols. —Sarah Anzlovar, Verywell Health, 20 Feb. 2026

Hydrogen peroxide loses its potency when exposed to light, which is why it is packaged in an opaque bottle. —Maria Sabella, The Spruce, 18 Feb. 2026

This preserves the potency of the compounds that might otherwise be destroyed by long boiling times. —Lauren Manaker, SELF, 17 Feb. 2026

Over the past decade, studies have shown the potency of going up and down stairs each day to boost your health. —The Washington Post, San Diego Union-Tribune, 17 Feb. 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Kids Definition

potency

noun

po·​ten·​cy ˈpōt-ᵊn-sē 

plural potencies

: the quality or state of being potent

vitamins of high potency

especially : power to bring about a certain result

Medical Definition

potency

noun

po·​ten·​cy ˈpōt-ᵊn-sē 

plural potencies

: the quality or state of being potent: as

a

: chemical or medicinal strength or efficacy

a drug's potency

b

: the ability to copulate

—usually used of the male

c

: initial inherent capacity for development of a particular kind

cells with a potency for eye formation