fall in line

listen to the pronunciation of fall in line
İngilizce - Türkçe
doğrultusunda düşüş
İngilizce - İngilizce
To submit to the rules of a higher authority; obey; conform

I won't grow up, I won't fall in line.

agree on (a position, for example)
fall line
A line marking a boundary between an upland region and a plane; sometimes marked by a series of waterfalls on rivers that cross it
fall line
The imaginary line downhill that something falling downhill would naturally follow
fall in line