Alert vs Fast on our feet
When to use each in English, with meaning, register, and examples.
Alert
Top 1,000 (very common)C1verb
Fast on our feet
Top 3,000 (common)
Most common: Alert
| Alert | Fast on our feet | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/əˈlɜːt/","/əˈlɜːts/","/əˈlɜːtɪd/","/əˈlɜːtɪŋ/"]/🇺🇸 /["/əˈlɜːrt/","/əˈlɜːrts/","/əˈlɜːrtɪd/","/əˈlɜːrtɪŋ/"]/ | 🇬🇧 //fæst ɒn aʊər fiːt//🇺🇸 //fæst ɑn aʊər fit// |
| Meaning | Aware and paying attention; quick to notice things. | able to move quickly or react quickly |
| Example | Neighbours quickly alerted the emergency services. | The dancer was fast on our feet, impressing everyone with her moves. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 3,000 (common) |
| CEFR level | C1 | - |
| Part of speech | verb | |
| Collocations | stay alert, alert to danger, make someone alert, be alert for signs | be fast on our feet, remain fast on our feet, get fast on our feet |
| 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. | Confusing with 'fast on the ground' which is incorrect., Using inappropriately in contexts about speed without agility., Translating directly to other languages without understanding idiomatic usage. |
| 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 both formal and informal settings; implies agility or quickness in response. Often positive in tone. |
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Frequently asked questions: Alert vs Fast on our feet
What's the difference between Alert and Fast on our feet?
Alert: Aware and paying attention; quick to notice things. Fast on our feet: able to move quickly or react quickly
Which is more common: Alert and Fast on our feet?
Alert is the most common in everyday English.
Can you show an example of each?
Alert: Neighbours quickly alerted the emergency services. Fast on our feet: The dancer was fast on our feet, impressing everyone with her moves.
Can I use Alert and Fast on our feet interchangeably?
Not always. Alert and Fast on our feet 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.