Clues vs Signal

When to use each in English, with meaning, register, and examples.

Clues

Top 2,000 (common)

Signal

Top 1,000 (very common)B1noun
Most common: Signal
 CluesSignal
Pronunciation🇬🇧 //kluːz//🇺🇸 //kluːz//🇬🇧 /["/ˈsɪɡnəl/"]/🇺🇸 /["/ˈsɪɡnəl/"]/
MeaningHints that help you solve a problem or mystery.A sign or message that tells someone something.
ExampleThe detective found several useful clues at the scene of the crime.The radio signal was weak, making it difficult to hear the news.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-B1
Part of speechnoun
Collocationsgive clues, follow clues, find clues, provide clues, search for cluesclear, unmistakable, agreed, give (somebody), make, send, come from something, indicate something, at a signal, on a signal, signal for, railroad, railway, traffic, operate, be on red/​green, be red/​green, fail, box, failure, faint, weak, strong, carry, pass, relay, travel, fade, intensity, strength, signal from, signal to, clear, unmistakable, agreed, give (somebody), make, send, come from something, indicate something, at a signal, on a signal, signal for
Antonymsobscurity, mysterynoise, silence
Common mistakesConfusing 'clue' as singular with 'clues' as plural., Using 'clues' in non-mystery contexts without proper explanation., Mixing 'clue' with unrelated terms like evidence.Confused with 'sign' — remember 'signal' is an act of sending a message., Using the wrong preposition, e.g., 'signal to' instead of 'signal for'., Mispronunciation, often saying 'sig-nal' instead of 'sig-nuhl'.
Usage notesUse 'clues' in contexts like solving puzzles or mysteries. Avoid in formal writing without proper context.Commonly used in both formal and informal contexts. In technical settings, it may refer to electromagnetic signals or communication. Avoid in very casual conversations.

See it in real clips

Clues
Signal

Frequently asked questions: Clues vs Signal

What's the difference between Clues and Signal?

Clues: Hints that help you solve a problem or mystery. Signal: A sign or message that tells someone something.

Which is more common: Clues and Signal?

Signal is the most common in everyday English.

Can you show an example of each?

Clues: The detective found several useful clues at the scene of the crime. Signal: The radio signal was weak, making it difficult to hear the news.

Can I use Clues and Signal interchangeably?

Not always. Clues and Signal are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons