Lea·vitt 
(lēvĭt), Henrietta Swan 1868-1921.
(lēvĭt), Henrietta Swan 1868-1921. American astronomer who discovered over 2,400 variable stars and observed a correlation between these stars' luminosity and period that allows for the determination of interstellar and intergalactic distances.
- fall in with
- fall line
- fall off
- falloff
- fall on
- fall on deaf ears
- fall on (or upon)
- fallopian tube
- Fallot's tetralogy
- fall out
- fallout
- fall over
- fall over backward
- fall over backward/backwards
- fall over backwards
- fall over (oneself)
- fall over oneself
- fallow
- fallow deer
- fallowness
- fall prey to
- Fall River
- Falls
- fall short
- fall through