Cool MateBoost vs Strengthen
When to use each in English, with meaning, register, and examples.
Boost
Top 1,000 (very common)B2verb
Strengthen
Top 1,000 (very common)B2verb
| Boost | Strengthen | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/buːst/","/buːsts/","/ˈbuːstɪd/","/ˈbuːstɪŋ/"]/🇺🇸 /["/buːst/","/buːsts/","/ˈbuːstɪd/","/ˈbuːstɪŋ/"]/ | 🇬🇧 /["/ˈstreŋkθn/","/ˈstreŋkθnz/","/ˈstreŋkθnd/","/ˈstreŋkθənɪŋ/"]/🇺🇸 /["/ˈstreŋkθn/","/ˈstreŋkθnz/","/ˈstreŋkθnd/","/ˈstreŋkθənɪŋ/"]/ |
| Meaning | to increase or improve something | To make something stronger or more powerful. |
| Example | to boost exports/profits | Regular exercise can help strengthen your muscles. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | B2 | B2 |
| Part of speech | verb | verb |
| Collocations | considerably, dramatically, greatly, help (to), to | considerably, enormously, greatly, help (to), serve to, be designed to, against, an attempt to strengthen something, an effort to strengthen something, be aimed at strengthening something |
| Antonyms | decrease, diminish, reduce | weaken, diminish, reduce |
| Common mistakes | Confused with 'boast' – they have different meanings., Using 'boost' with uncountable nouns incorrectly., Confusing transitive use of 'boost' with intransitive. | Confused with 'strength' as a noun., Used incorrectly with an intransitive verb pattern (e.g., 'strengthen' alone without an object)., Saying 'make strong' instead of 'strengthen'. |
| Usage notes | Used in various contexts, such as improving performance or enhancing qualities. Avoid in highly formal contexts. | Use 'strengthen' when referring to making an argument, relationship, or physical object stronger. It is suitable for both spoken and written contexts, but can sound more formal in some situations. |
Frequently asked questions: Boost vs Strengthen
What's the difference between Boost and Strengthen?
Boost: to increase or improve something Strengthen: To make something stronger or more powerful.
Are Boost and Strengthen the same CEFR level?
Boost: B2, Strengthen: B2 on the CEFR scale.
Can I use Boost and Strengthen interchangeably?
Not always. Boost and Strengthen 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.