fall in

verb

fell in; fallen in; falling in; falls in

intransitive verb

1

: to sink inward

the roof fell in

2

: to take one's proper place in a military formation

see also:

fall in with

Examples of fall in in a Sentence

Recent Examples on the Web

In a recurring image, Sol and Luna seesaw on a foam mountain, rising and falling in turn as the days and centuries flow by below. — Mark Asch, Variety, 29 Oct. 2026

Steenburgen and McDowell met on the set of the 1979 time-travel thriller Time After Time, fell in love and were married from 1980 to 1990. — Seth Abramovitch, HollywoodReporter, 29 Oct. 2026

Conditions vary in Congo, which explains why cases can be stable or falling in some places but can be trending up in others, researchers and response workers say. — ABC News, 29 Oct. 2026

There was also an assassination attempt, multiple engagements, a Newport ball, and several changes in fortune (families are always rising and falling in Julian Fellowes‘ America). — Brent Lang, IndieWire, 28 Oct. 2026

Word History

First Known Use

1719, in the meaning defined at sense 1

Rhymes for fall in

• cauline
• fallen
• paulin
• pollen
• befallen
• crestfallen
• tarpaulin