leakage

noun

leak·​age ˈlē-kij 

1

a

: the act or process or an instance of leaking

b

: loss of electricity especially due to faulty insulation

2

: something or the amount that leaks

Examples of leakage in a Sentence

trying to prevent accidental leakages

Leakages of about 30 percent were reported.

taking steps to prevent leakage of confidential information

Recent Examples on the Web

Environmental groups have rejected the premise that stricter cap-and-invest rules on businesses would drive them out of California, arguing there is no evidence that the program has caused leakage. —Chaewon Chung march 9, Sacbee.com, 9 Mar. 2026

This model is designed to support the simulation of edge-to-edge repair, a method used to fix atrioventricular valve leakage. —Munis Raza, Interesting Engineering, 5 Mar. 2026

Seals protect against dangerous leakage. —Charles Singh, USA Today, 27 Feb. 2026

The upgraded Adaptive Noise Canceling optimizer analyzes both ambient sound and fit in real time, adjusting for subtle leakage around the ear tips. —New Atlas, 20 Feb. 2026

Word History

Etymology

Middle English lecage, from leken "to leak entry 1" + -age -age

First Known Use

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

Kids Definition

leakage

noun

leak·​age ˈlē-kij 

1

a

: the act, process, or an instance of leaking

b

: loss of electricity due especially to faulty insulation

2

: something or the amount that is lost in a leak