பொருள் : A problematic situation that will eventually become dangerous if not addressed.
எடுத்துக்காட்டு :
India is a demographic time bomb.
The refugee camp is a ticking bomb waiting to go off.
ஒத்த சொற்கள் : ticking bomb
பொருள் : A bomb that has a detonating mechanism that can be set to go off at a particular time.
ஒத்த சொற்கள் : infernal machine