(~s, ~ing, ~ed)
Frequency: The word is one of the 700 most common words in English.
1.
A ~ is a planned set of activities that people carry out over a period of time in order to achieve something such as social or political change.
During his election ~ he promised to put the economy back on its feet...
...the ~ against public smoking.
N-COUNT: oft N to-inf, N for/against n
2.
If someone ~s for something, they carry out a planned set of activities over a period of time in order to achieve their aim.
We are ~ing for law reform...
They have been ~ing to improve the legal status of women.
VERB: V for/against n, V to-inf
3.
In a war, a ~ is a series of planned movements carried out by armed forces.
The allies are intensifying their air ~.
= operation
N-COUNT: oft n N
4.
see also advertising ~