bases

¹ American

[bey-seez] / ˈbeɪ siz /

noun

plural of basis.

bases ² American

[bey-siz] / ˈbeɪ sɪz /

noun

plural of base.

bases ¹ British

/ ˈbeɪsiːz /

noun

the plural of basis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bases ² British

/ ˈbeɪsɪz /

noun

the plural of base 1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“He’d set up these scenarios that were like, two outs, bottom of the ninth, World Series, bases loaded; he’d hit a huge fly ball and I’d catch it.”

From Los Angeles Times • Jun. 26, 2026

The U.S. is re-evaluating its Middle East military footprint, considering moving bases farther west and revamping the Bahrain facility.

From The Wall Street Journal • Jun. 26, 2026

New guidance on creating inclusion bases in mainstream schools has also been released.

From BBC • Jun. 25, 2026

The US maintains several military bases across the Middle East, notably in the Gulf where US Secretary of State Marco Rubio kicked off a tour on Wednesday in a bid to reassure allies.

From Barron's • Jun. 24, 2026

If it landed before being caught, you could run the bases.

From "Bad Boy" by Walter Dean Myers

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023