based

[beyst]

adjective

1. having a specified object or material as its base or foundation or as its primary constituent (often used in combination).

   Our house was one of the three stone-based houses of that era, built by my maternal grandfather.

2. established, grounded, or focused on a specified principle or belief, fact, method, etc. (often used in combination).

   It’s a culturally based phys ed curriculum that uses Indian traditions and values to teach healthy lifestyle habits.

   There are a number of promising evidence-based treatment modalities to address depression.

3. having a specified place as its primary location or headquarters; stationed or situated (often used in combination).

   A centrally based Houston media agency is looking for a Digital Account Manager to help with a key communications client.

   The Chicago-based HIV/AIDS organization provides housing, healthcare, and substance abuse programs for its clients.

4. having a specified origin or source (often used in combination).

   They want to replace animal-based foods with plant-based milks and vegetable protein.

5. Slang.,  true to one’s self or secure in one’s beliefs regardless of what others think, especially when those beliefs fall outside of the mainstream.

   Her presentation was so based—did you see the teacher's expression? Priceless!

interjection

Slang.

1. (used to express approval or respect, especially in response to a social media post).

   Based. At least somebody shows some spine on this forum.

verb

1. the simple past tense and past participle of base.

Other Word Forms

• unbased adjective
• well-based adjective

Word History and Origins

Origin of based¹

First recorded in 1610–20; base ¹ ( def. ) + -ed ² ( def. )

Example Sentences

Five years on, the Ministry of Justice's plan to repeal the presumption means courts would make decisions based on the consideration of a child's safety and welfare - without a default assumption.

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Siddiq, who is based in London and has rejected the charges, is unlikely to serve the sentence.

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"I want to emphasise again that everything we do is based on safety assessments and there's no rush to meet any specific month."

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Meta, the parent company of Facebook, has started deactivating accounts based on information such as the age given when they were created.

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A "huge amount" of observational research, often based on surveys, has tracked a correlation between teen tech use and worse mental health, she told AFP.

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