Meaning

• A public gathering or mass meeting that is not mainly a protest and is organized to inspire enthusiasm for a cause.

  "a campaign rally"

• A protest or demonstration for or against something, but often with speeches and often without marching, especially in North America.

  "a political rally"

• A sequence of strokes between serving and scoring a point.

• An event in which competitors drive through a series of timed special stages at intervals. The winner is the driver who completes all stages with the shortest cumulative time.

• A recovery after a decline in prices (said of the market, stocks, etc.)

Meaning

• To collect, and reduce to order, as troops dispersed or thrown into confusion; to gather again; to reunite.

• To come into orderly arrangement; to renew order, or united effort, as troops scattered or put to flight; to assemble; to unite.

• To collect one's vital powers or forces; to regain health or consciousness; to recuperate.

• To recover strength after a decline in prices; -- said of the market, stocks, etc.