Congregate and Run-up

Congregate verb - To bring together in one body or place.

Run-up and congregate are semantically related. In some cases you can replace phrase "Run-up" with "Congregate", this terms are similar.

Run-up noun - A substantial increase over a relatively short period of time.

Congregate and run-up are semantically related. Sometimes you can use "Congregate" instead a verb phrase "Run-up".