Sign In Get Started
Prepositions after verbs

Activate by or activate in?

Activate commonly appears with by to show the triggering method. In usually introduces a separate context, not a fixed combination.

Quick answer

Use activate by for the triggering method

Activate by explains how something is switched on or triggered. Activate in is not a standard fixed pattern, but in can describe the system, location, or environment where activation happens.

The alarm was activated by motion.
The feature can be activated by voice command.
The software was activated in the test environment.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
activate by + cause or method

Showing what triggers activation

By introduces the action, device, or event that activates something.

The door is activated by a sensor.
The account was activated by email confirmation.
2
activate + object in + place/system

Adding location or context

In introduces where activation occurs, not a required preposition after activate.

They activated the tool in the app.
The engineer activated the backup system in the lab.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
activate by
The machine is activated by pressure.
Standard pattern for trigger or method.
activate in
The feature was activated in Europe.
In adds location or context.
activate through
Users activate accounts through the website.
Alternative expression for means or channel.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using in for the activating method

Use by to identify the trigger or cause.

✕ The system was activated in a password. ✓ The system was activated by a password.

Omitting the object after activate

Activate usually takes a direct object.

✕ Please activate in the settings. ✓ Please activate the feature in the settings.

Quick practice

Choose the expression that matches the intended meaning.

1. The lights are activated ___ movement.
2. They activated the feature ___ the mobile app.
3. The account was activated ___ a confirmation link.

Check your sentence in context

Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.

Free to try · No signup required

Frequently asked questions

Is activate by standard English?

Yes. It is common for describing a trigger, cause, or method.

Can I say activate in?

Yes, when in introduces a place, system, or context rather than a fixed verb pattern.

What is a common synonym for activate?

Enable, switch on, and trigger are common alternatives depending on context.

abandon, by, abandon, in "abduct by", "abduct in" or "abduct from"? abide by, in, with, to or on? "abolish in" or "abolish by"? "abound in" or "abound with"? "absorb by", "absorb into" or "absorb in"? "accelerate by", "accelerate to" or "accelerate in"? accentuate by, with, in or under? accept by, in, as, for or into? "accommodate in", "accommodate for" or "accommodate to"? "accomplish by" or "accomplish in"? "accord to" or "accord with"?

Write with confidence in Linguix

Create a free account to check complete texts, apply suggestions, and save your documents.

Create a free account