When someone defects, they switch their allegiance from one side to the other. This can be a political defection, a religious defection, or a defection in any other kind of war.
The soldier defected to the opposing side, and now he's fighting for them.
He defected from the church, and now he's a atheist.
verb
To abandon or turn against; to cease or change one's loyalty, especially from a military organisation or political party.
verb
To desert one's army, to flee from combat.
verb
To join the enemy army.
verb
To flee one's country and seek asylum.
1
The defect of the system was apparent.
2
The system operated was defective.
3
At the least, it shows that the chart is defective.
4
Myopia is a refractive defect of the eye.
5
The client is prating about the defects.
6
The defect is to be found in the waist and legs.
7
The defect was found to be in the earpiece design.
8
The defection brought the Tories to power.
9
The defective eggs miscarry naturally.
10
The defects are detectable by the naked eye.