If you don't study hard, you will fall behind in class.

When all else fails, I fall back on my family for support.

Despite their efforts, they fall short of their goal.

If you don't prepare well, your plans may fall through.

The leaves fall away from the trees in autumn.

I saw a man fall over on the sidewalk.

The acrobat attempted a dangerous stunt but ended up falling to the ground.

He decided to take the fall for his team's mistake.

He was just a fall guy for the real criminals.

The fall line is the point where multiple rivers become waterfalls.