Synonyms for abandon

He thought he could make it but after considering the complicated situation, he ..... all hope.

Brian got so upset and for the first time in his life his presence of mind ..... him.

Sometimes good friends will ..... you just when you need them.

I think you should ..... school and get a job.

Although he was very sick, he didn't even try to ..... drinking.

The doctor told the patient that he should ..... smoking.

Despite current problems, they hadn't ..... their commitment to the idea.

The soldiers were exhausted and they finally ..... the city to the enemy.

Jospeph said he would accept the agreement only on the condition that the manager would ..... his office position.

What time does the plane ..... exactly?