Cool MatePeak vs That's as high as it goes
When to use each in English, with meaning, register, and examples.
Peak
Top 2,000 (common)C1noun
That's as high as it goes
Top 5,000 (fairly common)
Most common: Peak
| Peak | That's as high as it goes | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/piːk/"]/🇺🇸 /["/piːk/"]/ | 🇬🇧 //ðæts æz haɪ əz ɪt ɡoʊz//🇺🇸 //ðæts æz haɪ əz ɪt ɡoʊz// |
| Meaning | the highest point of something, like a mountain or a time | It reaches its highest point. |
| Example | They reached the mountain peak after a long and exhausting climb. | The water level in the tank is full; that's as high as it goes. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 5,000 (fairly common) |
| CEFR level | C1 | - |
| Part of speech | noun | |
| Collocations | all-time, seasonal, summer, rise to, rise towards/toward, hit, hours, period, season, at a/the/your peak, peak of, in peak condition, peaks and troughs, high, lofty, towering, climb, conquer, scale, loom, rise, tower, on a/the peak | as high as it gets, reach as high as, goes up to, not go higher, maximum level |
| Antonyms | valley, bottom, low point | - |
| Common mistakes | Confused with 'peek'; they sound similar but have different meanings., Using it as a verb when it should be an adjective (e.g., 'the peak time' instead of 'peaking time'). | Confusing with 'That's as low as it goes' when referring to a minimum., Using 'go' in past tense instead of present when talking about current limits., Saying 'that's as high that it goes', which is incorrect. |
| Usage notes | Use 'peak' when referring to the highest part, such as in 'the peak of the mountain' or 'the peak of my career.' Avoid using it in overly casual contexts. | Use this phrase when referring to a limit or maximum height. It is casual and can be used in conversations or informal writing. |
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Frequently asked questions: Peak vs That's as high as it goes
What's the difference between Peak and That's as high as it goes?
Peak: the highest point of something, like a mountain or a time That's as high as it goes: It reaches its highest point.
Which is more common: Peak and That's as high as it goes?
Peak is the most common in everyday English.
Can you show an example of each?
Peak: They reached the mountain peak after a long and exhausting climb. That's as high as it goes: The water level in the tank is full; that's as high as it goes.
Can I use Peak and That's as high as it goes interchangeably?
Not always. Peak and That's as high as it goes 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.