Meaning of WEAKNESS in English

WEAKNESS

[noun]Any change of policy will be interpreted as a sign of weakness. [U]There are definite weaknesses in their security arrangements. [C]A weakness is also a fault in someone's character.What's interesting about this film is that the hero manifests a whole range of human weaknesses.Vanity was her greatest weakness.A weakness is also a strong liking, usually for something which might have unpleasant or unwanted effects.My diet would be fine if only I didn't have this weakness for sweet things.Aside from a weakness for silk shirts, she's not really an extravagant woman.

Cambridge English vocab.      Кембриджский английский словарь.