Meaning : A warning to take action concerning something that was overlooked or neglected.
Example :
The bombing was a wake-up call to strengthen domestic security.
Meaning : A telephone call that you request be made a specific time in order to wake you up at that time (especially in hotels).
Example :
She left a wake-up call for 7 a.m..
Wake-up call ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Wake-up call ka matlab kya hota hai?