fall in Meaning, Definition & Usage

1. verb break down, literally or metaphorically
   collapse; founder; give; give way; break; cave in.
   
   • 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. verb to take one's place in a military formation or line
   
   • Troops fall in!
3. verb become part of; become a member of a group or organization
   join; get together.
   
   • He joined the Communist Party as a young man

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