one spoon
Rare term for a single spoon, likely used in historical or specialized contexts such as old recipes or ceremonial references.
The old document recorded 'one spoon of salt'.
one dagger
Rare term for a single dagger; 匕 can mean 'spoon' or 'dagger' depending on context, and this reading is uncommon.
'一匕' can refer to one dagger, but it is hardly used in modern Japanese.