名詞 falling-out:

1. a personal or social separation (as between opposing factions)
   同義詞：rupture, breach, break, severance, rift, falling out

動詞 fall-out:

1. have a breach in relations
   同義詞：fall out
2. come as a logical consequence; follow logically
   同義詞：follow, fall out
3. come off
   同義詞：come out, fall out
4. leave (a barracks) in order to take a place in a military formation, or leave a military formation
   同義詞：fall out
5. come to pass
   同義詞：happen, hap, go on, pass off, occur, pass, fall out, come about, take place

fall.ing-out

n.（名詞）
【復(fù)數(shù)】 fall.ings-out 或 fall.ing-outs
A disagreement; a quarrel:
分歧；爭吵：
例句：
a falling-out among family members.
家庭成員間的爭吵