Meaning of “gather” - Learner’s Dictionary

gather

verb us uk /ˈɡæðər/
A crowd of noisy protesters gathered in the square.Thousands gathered to protest the plan.A crowd of well-wishers gathered outside the hospital.A large crowd had gathered to wait for the princess.Crowds gathered all along the route to watch the race.
MAKE A GROUP [ I, T ]

B2 to join other people somewhere to make a group, or to bring people together into a group:

Crowds of fans gathered at the stadium for the big match.
COLLECT [ T ]

B2 to collect several things together, often from different places or people:

They interviewed 1000 people to gather data on TV viewing habits.
She gathered / her things together and left.
THINK [ T ]

to think something is true because you have heard or seen information about it:

From what I can gather, they haven't sold their house yet.
gather speed/strength/support, etc

(Definition of “gather” from the Cambridge Learner’s Dictionary © Cambridge University Press)