naive
You weren't so naive as to believe him, were you?
notable
The novelist's first book was a notable achievement.
nutrition
Instant noodles do not have enough nutrition,
so people just consider，them as junk food.
obedient
He is an obedient and well behaved child.
obesity
A diet that is high in fat and sugar can lead to obesity.
oppress
The rich oppress the masses by their control of the political and judicial system.
optic
IBM has produced electro-optic modulators 100 to 1,000 times smaller  I
than comparable silicon photonics modulators.