based

American  

[beyst] / beɪst /

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!

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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

Etymology

Origin of based

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

Example Sentences

And so we learn about the various mainstream caliphates over the centuries, the Umayyads and the Abbasids, and ultimately the Ottoman sultan-caliphs based in Istanbul who took on the role of “God’s shadow on earth.”

From The Wall Street Journal

ADP’s figures are based on job-creation data gleaned from the millions of businesses that farm out their payroll operations to the Roseland, N.J.-based company.

From The Wall Street Journal

Stephen Kalin is a foreign correspondent for The Wall Street Journal based in the Middle East, where he has lived since 2009.

From The Wall Street Journal

"As things stand, based on firms' overall hiring plans, investment in and the intensive use of AI are not yet replacing jobs," they said.

From Barron's

Such neutrality helps prevent the ETF from being a laggard if market moves are based solely on a specific sector or country.

From Barron's