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Prepositions with signal

Using prepositions with signal

Signal commonly combines with “for” to show purpose or meaning. “With signal” usually describes accompanying conditions, while “of signal” is generally not a fixed modern expression.

Quick answer

Which preposition works with signal?

Use “signal for” when something indicates an action or event. Use “with signal” when describing a device or condition that includes a signal. “Of signal” is generally unnatural as a fixed combination.

The bell was a signal for dinner.
The phone works with signal in this area.
The whistle gave a signal for departure.

Choose the pattern by meaning

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

1
signal for + action/event

Showing what the signal means

Use “signal for” when a signal indicates an action, response, or event.

The siren was a signal for evacuation.
The green light is the signal for drivers to move.
2
signal from + source

Identifying where the signal comes from

Use “from” for the origin of a signal.

We received a signal from the satellite.
3
with signal + condition

Describing connectivity or reception

Use “with signal” in technical or practical contexts about reception.

Move to an area with signal before calling.

See the difference in context

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

Construction
Example
Meaning
signal for
The alarm was a signal for everyone to leave.
indicates an action or event
with signal
Only some rooms are with signal underground.
having reception or connectivity
of signal
“Of signal” is not a standard fixed combination in modern English.
generally unnatural
signal of
His silence was a signal of disapproval.
formal expression meaning indication of something

Common mistakes

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

Using of signal as a standard phrase

English normally uses “signal of” or “signal for,” not “of signal.”

✓ The alarm was a signal for danger.

Confusing signal for and signal of

“Signal for” points to an action or response, while “signal of” describes indication.

✕ The smoke was a signal for trouble. ✓ The smoke was a signal of trouble.

Quick practice

Choose the expression that matches the intended meaning.

1. The whistle was a ___ the race to begin.
2. We finally stopped in a village ___ phone reception.
3. His tone was a ___ frustration.

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Frequently asked questions

Is “signal for” natural English?

Yes. It is common for instructions, actions, and events.

Can “with signal” be correct?

Yes. It is used mainly in technical or everyday connectivity contexts.

Should I use “of signal”?

Usually no. English normally uses “signal of” or another structure instead.

of, about, against, to or for racism? of, about, for, in or on friendship? of, about, for, on or to thing? of, about, for, to or with sex? of, about, on, to or for moon? "of access" or "with access"? "of accommodation" or "for accommodation"? "of accuracy" or "for accuracy"? "of action" or "in action"? "of actor", "with actor" or "by actor"? "of address" or "to address"? "of administration" or "in administration"?

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