Alert vs That was the signal
When to use each in English, with meaning, register, and examples.
Alert
Top 1,000 (very common)C1verb
That was the signal
Top 2,000 (common)
Most common: Alert
| Alert | That was the signal | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/əˈlɜːt/","/əˈlɜːts/","/əˈlɜːtɪd/","/əˈlɜːtɪŋ/"]/🇺🇸 /["/əˈlɜːrt/","/əˈlɜːrts/","/əˈlɜːrtɪd/","/əˈlɜːrtɪŋ/"]/ | 🇬🇧 //ðæt wəz ðə ˈsɪɡnəl//🇺🇸 //ðæt wəz ðə ˈsɪɡnəl// |
| Meaning | Aware and paying attention; quick to notice things. | A signal is a sign to do something. |
| Example | Neighbours quickly alerted the emergency services. | When the bell rang, that was the signal for everyone to start the exam. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | C1 | - |
| Part of speech | verb | |
| Collocations | stay alert, alert to danger, make someone alert, be alert for signs | give a signal, receive a signal, clear signal, signal to start, signal for help |
| Antonyms | unaware, distracted, sleepy | - |
| Common mistakes | 'Alert' used as a noun instead of an adjective., Confused with 'alarmed', which means frightened., Using 'alerts' incorrectly as a verb form. | Confused with 'sign'. 'Signal' is more specific., Using it in unrelated contexts, like referring to mere events., Overusing in casual conversations, it fits better in descriptive contexts. |
| Usage notes | Use 'alert' to describe someone who is attentive. It can be used in formal and informal contexts, but avoid using it in very casual conversations. | Used in contexts where a cue is given. It is appropriate in both informal and formal settings. |
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Frequently asked questions: Alert vs That was the signal
What's the difference between Alert and That was the signal?
Alert: Aware and paying attention; quick to notice things. That was the signal: A signal is a sign to do something.
Which is more common: Alert and That was the signal?
Alert is the most common in everyday English.
Can you show an example of each?
Alert: Neighbours quickly alerted the emergency services. That was the signal: When the bell rang, that was the signal for everyone to start the exam.
Can I use Alert and That was the signal interchangeably?
Not always. Alert and That was the 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.