Meaning : Maintain influence over (others or oneself) skillfully, usually to one's advantage.
Example :
She manipulates her boss.
She is a very controlling mother and doesn't let her children grow up.
The teacher knew how to keep the class in line.
She keeps in line.
Synonyms : control, manipulate
Keep in line ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Keep in line ka matlab kya hota hai?