Disarm means to take weapons from someone so they cannot fight. We often use it with soldiers or police. It is an action word.
The soldiers disarmed the enemy fighters.
He tried to disarm the robber quickly.
Disarm can mean to make someone less angry by being nice. It is often used to describe feelings or conversations. It is a verb.
Her smile helped to disarm the angry man.
He tried to disarm his friend with kind words.
Disarm means to make a bomb or mine safe by taking away its dangerous parts. Experts do this work. It is a special use of the word.
The experts disarmed the bomb carefully.
They disarmed the land mine before the workers arrived.
Disarm as a noun means the event or action of taking weapons away. It is the name of the process. This meaning is less common but still used.
The disarm of the soldiers happened at noon.
They announced the disarm of all weapons here.
Disarm can mean to turn off a security system or alarm so it stops. This use is common with technology or safety systems.
Please disarm the alarm before leaving.
She disarmed the security system quickly.
Disarm means to make a machine or device safe by removing power or dangerous parts. This use includes many technical devices.
The technician disarmed the machine for repair.
He disarmed the device before opening it.