back out

 back out 

= to withdraw from an agreement, commitment, or plan

Susan was supposed to join us for the charity run, but she had to back out at the last minute due to her knee injury.

My partner suddenly backed out of the deal, leaving us to find a new partner to support the project immediately.

Mark was excited about the new job, but he backed out just before signing the contract due to a better opportunity.

Mark was supposed to invest in the startup, but he backed out after reevaluating his financial situation.

Some synonyms and antonyms for "back out":

Synonyms:

Withdraw  

Cancel  

Abandon

Antonyms:

Commit  

Engage  

Join  

Support

Question:

01. What does the phrasal verb "back out" mean in the following sentence?

Mark agreed to organize the event, but he suddenly decided to back out at the last minute.

A) To take charge of the event

B) To withdraw from a commitment

C) To participate actively

D) To support the planning

02. What does "back out" mean in this sentence?

"She decided to back out of the deal."

A) To change her mind

B) To withdraw from a plan

C) To support the plan

D) To agree fully