crumb

crumb /ˈkrʌm/ noun
plural crumbs
crumb
/ˈkrʌm/
noun
plural crumbs
Britannica Dictionary definition of CRUMB
[count]
1 
: a very small piece of food
◊ Crumbs are usually pieces of baked foods like bread or cake. They are sometimes used in cooking.
2 
informal : a very small amount of something — usually + of