1. a waterfall or cascade
Usage: often used in proper names
2. the season when leaves fall from trees; autumn
Usage: primarily American English

1. third person singular present of fall

Examples

• Niagara Falls attracts millions of tourists each year.
• The falls thundered as water crashed over the rocks.
• The leaves turn beautiful colors in the falls.
• She always visits her grandmother in the falls.
• The apple falls from the tree when it’s ripe.
• He falls asleep quickly after a long day.
• The temperature falls rapidly at night.