Difference between Activate and Set Off

ACTIVATE vs SET OFF: VERB

Make active or more active
Aerate (sewage) so as to favor the growth of organisms that decompose organic matter
Make more adsorptive
Put in motion or move to act
To put into action, to put to work.
To turn on.
Make (substances) radioactive

Set in motion or cause to begin
Direct attention to, as if by means of contrast
Make up for
Provoke or stir up
Cause to explode
Put in motion or move to act
Leave
To leave; to begin a journey or trip.
To begin; to cause; to initiate.
To cause to explode.
To make angry.
To offset, to compensate for: to reduce the effect of, by having a contrary effect.

To make active; intensify.
In physics, to render active; specifically, to make radioactive by exposure to the influence of a radioactive substance; to ionize. See radioactivity.

Unleash, Mobilize, Select, Switch, Initiate, Reactivate, Trigger off, Touch off, Spark off, Trip, Set off, Spark, Aerate, Actuate, Trigger

Explode, Accent, Cancel, Detonate, Trip, Stress, Actuate, Activate, Offset, Depart, Blow up, Bring out, Take off, Set forth, Set out

Jumpstart, Energize, Invoke, Induce, Implement, Apply, Unleash, Select, Switch, Initiate, Reactivate, Trip, Set off, Spark, Trigger

Trigger, Start, Accentuate, Explode, Accent, Cancel, Trip, Stress, Activate, Offset, Depart, Blow up, Bring out, Take off, Set out

Tap the image of your Cash Card and tap Activate Cash Card or the Activate box under the image.
To activate a default funding contract, open the funding contract list view and then double click on the funding contract you wish to activate.
To activate your poll from the Activities page, click on the Activate icon, located to the right of the poll.
Once the service has been successfully retired, the Activate button appears allowing you to activate the retired service.
Activate the relevant plates to activate the safe room doors, damage Kalli and use said doors to survive the wipe mechanic.
If you activate this effect, you must activate it immediately after you summon this card.
To activate a module, you need to purchase and activate a license for it.
ACh binding to muscarinic receptors activate subunits, that bind directly to the IKG channels, causing them to activate.
You must click the Activate User ID link provided in the email to activate your account.
When including interactions that activate on hover, ensure they can activate on click or tap, too.

His blood set off the breaking off a seal which resurrected the Devil.
Also, almost all note components are set off by commas, and almost all bibliographic components are set off by periods.
After dropping off the kids at their tuition we set off for Cheras with our GPS in hand.
If successful, wild dust storms will set off and set the scene for a final stand.
Nonessential dependent clauses should be set off by commas from the rest of the sentence; essential dependent clauses are not set off by commas.
Set on and set off of allocable surplus in payment.
Set on and set off of allocable surplus.
Program OFF: Repeat b steps to set off day and time.
Legal set off is the set off of mutual debts which are due and payable in the same right.
Truth of a situation off, you start a trip: set off meaning that set the photo to!