Meaning of TRIGGER in English
I. trig ‧ ger 1 AC /ˈtrɪɡə $ -ər/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Language: Dutch ; Origin: trekker , from Middle Dutch trecken 'to pull' ; ⇨ ↑ trek 2 ]
1 . the part of a gun that you pull with your finger to fire it
pull/squeeze the trigger
He took aim and squeezed the trigger.
2 . be the trigger (point) (for something) to be the thing that quickly causes a serious problem:
The hijacking became a trigger point for military action.
II. trigger 2 AC BrE AmE ( also trigger off ) verb [transitive]
1 . to make something happen very quickly, especially a series of events:
The assassination triggered off a wave of rioting.
Certain forms of mental illness can be triggered by food allergies.
trigger a memory (=make you suddenly remember something)
His action triggered a massive response from the government.
2 . to make something such as a bomb or electrical system start to operate SYN set off :
The burglars fled after triggering the alarm.
• • •
▪ cause to make something happen, especially something bad:
Bad weather has caused a lot of problems on the roads.
The fault caused the whole computer system to shut down.
▪ make somebody/something do something to cause someone to do something, or cause something to happen. Make is less formal than cause , and is the usual word to use in everyday English:
What made you decide to become a teacher?
I’m sorry, I didn’t mean to make you cry.
Gravity is the force which makes the planets move round the Sun.
▪ be responsible for something if someone or something is responsible for something bad, they caused it to happen:
The excessive heat was responsible for their deaths.
A small militant group was responsible for the bombing.
▪ bring about something to make something happen – used especially about changes or improvements:
The Internet has brought about enormous changes in society.
It’s important that we do everything we can to bring about peace.
▪ result in something if an action or event results in something, it makes that thing happen:
The fire resulted in the deaths of two children.
The decision is likely to result in a large number of job losses.
▪ lead to something to cause something to happen eventually after a period of time:
The information led to several arrests.
A poor diet in childhood can lead to health problems later in life.
▪ trigger if one event triggers another, it suddenly makes the second event happen:
The incident triggered a wave of violence.
An earthquake off Java’s southern coast triggered a tsunami.
▪ precipitate formal to make a very serious event happen very suddenly, which will affect a lot of people:
The withdrawal of foreign investment would precipitate an economic crisis.
The assassination of Archduke Franz Ferdinand precipitated World War I.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012