armor

chink in one's armor

Fig. a special weakness that provides a means for attacking or impressing someone otherwise invulnerable. (Alludes to an opening in a suit of armor that allows a weapon to penetrate.) Jane's insecurity is the chink in her armor. The boss seems mean, but the chink in his armor is that he is easily flattered.

See also: chink

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a chink in somebody's armour  (British & Australian) also a chink in somebody's armor (American & Australian)

if someone or something which seems to be strong has a chink in their armour, they have a small fault which may cause them problems She's a brilliant businesswoman, but her lack of political awareness may be the chink in her armour.

See also: armour, chink

a knight in shining armour  (British & Australian) also a knight in shining armor (American & Australian)

someone who helps you when you are in a difficult situation

Usage notes: In stories about medieval times (= the time between 500 and 1500 AD), knights were soldiers who rode on horses and helped women in difficult or dangerous situations.

She looked around the bar to see if there was a knight in shining armour who might come and save her from this awful man.

See also: armour, knight, shine

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a knight in shining armor

someone who helps you when you are in a difficult situation She was looking for a knight in shining armor who might save her from her boring life.

Usage notes: usually said by a woman about a man

Etymology: in medieval times (500 to 1500 C.E.), knights were soldiers on horses who were also supposed to help and protect women

See also: knight, shine