onslaught
on|slaught /'ɒnslɔːt/ (onslaughts)
1 [N-COUNT] usu with supp, oft N on/against n, N by n
An onslaught on someone or something is a very violent, forceful attack against them.
The rebels responded to a military onslaught against them by launching a major assault on an army camp.
= assault
2 [N-COUNT] usu N of n
If you refer to an onslaught of something, you mean that there is a large amount of it, often so that it is very difficult to deal with.
...the constant onslaught of ads on American TV.
= barrage
1 [N-COUNT] usu with supp, oft N on/against n, N by n
An onslaught on someone or something is a very violent, forceful attack against them.
The rebels responded to a military onslaught against them by launching a major assault on an army camp.
= assault
2 [N-COUNT] usu N of n
If you refer to an onslaught of something, you mean that there is a large amount of it, often so that it is very difficult to deal with.
...the constant onslaught of ads on American TV.
= barrage