1.Definition: a flaw or weak point

Category: General

2.Definition: a penchant for something even though it might not be good for you

"He has a weakness for chocolate"

Category: Feelings

3.Definition: powerlessness revealed by an inability to act

"In spite of their weakness the group remains active"

Related Noun(s):helplessness, impuissance

Category: General

4.Definition: the condition of being financially weak

"The weakness of the dollar against the yen"

Category: General

5.Definition: the property of lacking physical or mental strength; liability to failure under pressure or stress or strain

"His weakness increased as he became older", "The weakness of the span was overlooked until it collapsed"

Category: General