The police warned him not to make any 'false moves/movements'. [=movements that are not expected and that may be threatening or dangerous]
The loan was obtained 'on/under false pretenses'. [=by pretending that a certain condition or circumstance was true]
If someone makes/commits a 'false start', the race is immediately stopped and the runners have to start again.
(..) Yeah, but the important thing to know about us... ...is how much we would care for this little baby. So you lied to me before? Well, we "bore false witness." See? I could be a reverend. I can't believe this. But we were hoping that since we told you the truth... - ...that you still might consider-- (..)2004 TvShow: Friends Title: The One with the Birth Mother Season: 10 Episode 9