*leak² n [C] 1 a small hole that liquid or gas gets out through 漏洞，裂缝: There's a leak in the water-tank. 水箱有条裂缝。 2 gas or liquid that gets out through a hole 漏出物: an oil leak 漏出的油 3 when secret information is deliberately given to newspapers, television etc 〔秘密的〕泄露: security leaks 泄露危害安全的秘密