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

So you get a massive amount of servers and locations to choose from and torrenting and streaming are supported on all servers, so there are no dedicated servers to choose from based on your activities.

From Salon

Russia’s security services complained that citizens’ data was being stored beyond their reach by companies based abroad.

From The Wall Street Journal

Their approach uses high-dimensional encoding and is based on a well-known optical phenomenon called the Talbot effect.

From Science Daily

After both Mario movies, a film based on the Legend of Zelda is due to be released next year, and there appear to be plans for an animation based on Donkey Kong.

From BBC

Experts describe “surveillance wages” as a system in which wages are based not on an employee’s performance or seniority, but on formulas that use their personal data, often collected without employees’ knowledge.

From MarketWatch