fall in

1. 1

   (verb) break down, literally or metaphorically; "The wall collapsed"; "The business collapsed"; "The dam broke"; "The roof collapsed"; "The wall gave in"; "The roof finally gave under the weight of the ice"

2. 2

   (verb) to take one's place in a military formation or line; "Troops fall in!"

3. 3

   (verb) become part of; become a member of a group or organization; "He joined the Communist Party as a young man"

syn. collapse · cave in · give · give way · break · founder · join · get together

WordNet 3.1