also piggy-back
(~s, ~ing, ~ed)
1.
If you give someone a ~, you carry them high on your back, supporting them under their knees.
They give each other piggy-back rides.
N-COUNT
•
Piggyback is also an adverb.
My father carried me up the hill, ~.
ADV: ADV after v
2.
If you ~ on something that someone else has thought of or done, you use it to your advantage.
I was just ~ing on Stokes’s idea...
They are ~ing onto developed technology.
VERB: V on n, V onto n, also V