"Quarrel" vs. "feud": a clash of words

What is similar?
Both "quarrel" and "feud" refer to conflicts or disagreements between individuals or groups. They both imply a level of animosity or discord.
What is different?
A "quarrel" is generally a more transient, less serious disagreement or argument, often verbal, between people. It can happen between friends or family members and is usually resolved quickly. A "feud", on the other hand, is a prolonged and often more serious conflict, typically involving prolonged hostility between families, groups, or clans. Feuds often last longer and involve deeper animosity.
Which one is more common?

Examples of usage
Quarrel- They had a quarrel over who should pay the bill.
- The two friends had a quarrel and didn't speak for a week.
- She tried to avoid a quarrel by staying silent.
- The feud between the two families had lasted for generations.
- There was a famous feud in the town that divided the community.
- The neighbors" feud escalated into a legal battle.