Definition of Basis
Quick Meaning of Basis
The main reason, principle, or foundation that something is built or decided on.
Detailed Definition of Basis
the underlying principle, foundation, or reason for something; the starting point.
How to Pronounce Basis
Stress pattern: Oo (2-syllable word).
Tip: Two syllables: BAY-sis. Stress on first syllable. The 'sis' ending sounds like 'sis'.
Watch out: Sometimes mispronounced as /ˈbæsɪs/ with short A instead of long A /ˈbeɪsɪs/.
Origin and Etymology of Basis
From Greek 'basis', meaning step or pedestal; related to base.
How to Use Basis in a Sentence
Each example shows “basis” with a CEFR level so learners can pick examples that match their fluency.
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“Trust is the basis of a good friendship.”
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“The study forms the basis for new government policy.”
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“On a daily basis, she walks to work.”
Synonyms and Antonyms of Basis
Common Synonyms for Basis
Smart Synonyms for Basis — When to Use Each
- foundation
- when describing the underlying structure or support system
- principle
- when discussing fundamental beliefs or rules guiding decisions
Common Collocations with Basis
These phrases pair with “basis” in everyday English:
- on the basis of
- a solid basis
- the basis for
- day to day basis
- legal basis
Common Mistakes When Using Basis
Even fluent speakers slip up with “basis”. Here’s how to avoid the most common errors:
- ✗ Wrong: The bases of the argument is weak.
- ✓ Correct: The bases of the argument are weak.
- Why: Plural noun 'bases' requires plural verb 'are', not singular 'is'.
- ✗ Wrong: They work in a daily basis.
- ✓ Correct: They work on a daily basis.
- Why: The fixed phrase is 'on a daily basis' (with preposition 'on'), not 'in'.
Words Confused With Basis
- Basis vs Base: similar meaning but 'basis' is more abstract (reason/principle) while 'base' is more physical (foundation)
Other Forms of Basis
- Noun: basis
Frequently Asked Questions About Basis
What is the meaning of "Basis"?
The main reason, principle, or foundation that something is built or decided on.
How do you pronounce "Basis"?
The IPA is /ˈbeɪsɪs/. Two syllables: BAY-sis. Stress on first syllable. The 'sis' ending sounds like 'sis'.
What part of speech is "Basis"?
"Basis" is a noun at B1 level (Common European Framework).
What are synonyms for "Basis"?
Common synonyms include foundation, principle, ground.
How do you use "Basis" in a sentence?
For example: "Trust is the basis of a good friendship."