stab

1 stab /ˈstæb/ noun
plural stabs
1 stab
/ˈstæb/
noun
plural stabs
Britannica Dictionary definition of STAB
[count]
1 
: a wound made by a pointed weapon (such as a knife)
2 
: a sudden, strong feeling of physical or emotional pain — + of
3 
informal : an attempt to do something successfully — often + at

a stab in the back

: an action or way of behaving that hurts someone who trusts you : an act of betrayal

a stab in the dark

1 
: a guess that is based on very little or no information or evidence
2 
: an attempt that is not likely to succeed
2 stab /ˈstæb/ verb
stabs; stabbed; stabbing
2 stab
/ˈstæb/
verb
stabs; stabbed; stabbing
Britannica Dictionary definition of STAB
1 
[+ object] : to wound (someone or something) with a pointed weapon (such as a knife)
2 
: to quickly or suddenly push a pointed object into or toward someone or something
[+ object]
[no object]
— often + at

stab (someone) in the back

: to hurt (someone who trusts you) by not giving help or by doing something morally wrong : to betray (someone)