droves /drəʊvz/ US /droʊvz/
plural noun
a large group, especially of people, moving towards a place:
Every summer droves of sightseers crowd the city.
Fans came in droves/UK ALSO in their droves to see her concerts.

[TahlilGaran] Advanced Learner's Dictionary ▲

crowd a large number of people together in one place:
The exhibition is expected to attract large crowds of visitors.
mob a crowd of noisy and violent people who are difficult to control:
The mob set fire to cars and buildings.
mass a very large crowd which is not moving and which is very difficult to move through:
the mass of people in the station
horde a large crowd of people, especially people who are behaving in a way that you disapprove of or that annoys you:
the hordes of tourists on the island
droves [plural] a crowd of people – used especially when you are talking about a crowd of people who move from one place to another:
The public came in droves to see the event.
throng literary a very large crowd:
A great throng had gathered to listen to his speech.
flock a large group of people of the same type, especially when they have a leader:
A flock of children were being shown through the museum.
pack a group of people of the same type, especially a group you do not approve of:
A pack of reporters shouted questions.
swarm a large crowd of people who are moving quickly in many directions in a very uncontrolled way:
a swarm of children in the playground
crush a crowd of people who are pressed close together:
There was such a crush on the Metro this morning.
multitude formal literary a very large number of people, especially ordinary people:
The Emperor came out to speak to the multitude.

[TahlilGaran] English Thesaurus ▲