Basis vs Support

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

Basis

Top 2,000 (common)B1noun

Support

Top 1,000 (very common)A2verb
Most common: Support
 BasisSupport
Pronunciation🇬🇧 /["/ˈbeɪsɪs/","/ˈbeɪsiːz/"]/🇺🇸 /["/ˈbeɪsɪs/","/ˈbeɪsiːz/"]/🇬🇧 /["/səˈpɔːt/","/səˈpɔːts/","/səˈpɔːtɪd/","/səˈpɔːtɪŋ/"]/🇺🇸 /["/səˈpɔːrt/","/səˈpɔːrts/","/səˈpɔːrtɪd/","/səˈpɔːrtɪŋ/"]/
MeaningThe main reason or support for something.To give help or assistance.
ExampleThe basis of her argument was well-researched and convincing.I want to support my friends in their endeavors.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB1A2
Part of speechnounverb
Collocationsregular, annual, daily, on a… basis, whole, consistent, factual, on the basis of, basis for, firm, solid, sound, form, provide, basis for, have no basis in somethingoverwhelmingly, 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
Antonymssuperficiality, surfaceoppose, hinder, neglect
Common mistakesConfused with 'base' as a physical structure., Using 'basis' in plural form incorrectly., Confusing 'basis' with similar sounding words like 'basis' and 'basses'.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 discussions to refer to the fundamental reason or support behind ideas or actions. Common in academic and formal contexts, but can be used informally too. Avoid in casual conversation when discussing simple preferences.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: Basis vs Support

What's the difference between Basis and Support?

Basis: The main reason or support for something. Support: To give help or assistance.

Which is more common: Basis and Support?

Support is the most common in everyday English.

Are Basis and Support the same CEFR level?

Basis: B1, Support: A2 on the CEFR scale.

Can I use Basis and Support interchangeably?

Not always. Basis 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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