ˈkʌpful n. (pl. -fuls) 1
the amount held by a
cup,
esp. US a half-pint or 8-ounce
measure in
cookery. 2 a cup full of a
substance (drank a cupful of water). °A cupful is a measure,
and so
three cupfuls is a
quantity regarded in terms of a cup; three cups full denotes the
actual cups, as in three cups full of
water.
Sense 2 is an
intermediate use.