Reinforce vs Support

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

Reinforce

Top 2,000 (common)B2verb

Support

Top 1,000 (very common)A2verb
Most common: Support
 ReinforceSupport
Pronunciation🇬🇧 /["/ˌriːɪnˈfɔːs/","/ˌriːɪnˈfɔːsɪz/","/ˌriːɪnˈfɔːst/","/ˌriːɪnˈfɔːsɪŋ/"]/🇺🇸 /["/ˌriːɪnˈfɔːrs/","/ˌriːɪnˈfɔːrsɪz/","/ˌriːɪnˈfɔːrst/","/ˌriːɪnˈfɔːrsɪŋ/"]/🇬🇧 /["/səˈpɔːt/","/səˈpɔːts/","/səˈpɔːtɪd/","/səˈpɔːtɪŋ/"]/🇺🇸 /["/səˈpɔːrt/","/səˈpɔːrts/","/səˈpɔːrtɪd/","/səˈpɔːrtɪŋ/"]/
MeaningTo make something stronger or better.To give help or assistance.
ExampleThe teacher decided to reinforce the lesson with additional exercises.I want to support my friends in their endeavors.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2A2
Part of speechverbverb
Collocationsgreatly, powerfully, strongly, help (to), serve to, tend to, heavily, withoverwhelmingly, fervently, fully, agree to, pledge to, promise to, in, be well supported, be widely supported, support and encourage somebody/​something, overwhelmingly, fervently, fully, agree to, pledge to, promise to, in, be well supported, be widely supported, support and encourage somebody/​something, financially, generously, partially, help (to), through, financially, generously, partially, help (to), through, strongly, weakly, adequately, appear to, seem to, tend to, be supported by data, be supported by evidence, be well supported
Antonymsweaken, diminish, undermineoppose, hinder, neglect
Common mistakes'Reinforce' incorrectly used with objects that don't require strengthening, e.g., emotions., Confusing 'reinforce' with 'enforce', which means to compel observance., Using 'reinforced' when the context calls for 'reinforcing'.Confused with 'supplement', which means to add to something., Using 'support' as a noun without clarification (e.g. 'She gave support' is vague)., Mixing up 'support' and 'oppose'.
Usage notesUsed in both casual and professional settings. Common when discussing ideas, skills, or physical structures. Avoid in overly informal conversations.This word can be used in many contexts like emotional support, financial help, or supporting a cause. It's appropriate in both casual and formal contexts.

Frequently asked questions: Reinforce vs Support

What's the difference between Reinforce and Support?

Reinforce: To make something stronger or better. Support: To give help or assistance.

Which is more common: Reinforce and Support?

Support is the most common in everyday English.

Are Reinforce and Support the same CEFR level?

Reinforce: B2, Support: A2 on the CEFR scale.

Can I use Reinforce and Support interchangeably?

Not always. Reinforce and Support 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.

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