bicoastal
adjective
bi·coast·al (ˌ)bī-ˈkō-stəl 
: of, relating to, or occurring on both the east and west coasts of the U.S.
And everybody girded for a day of bicoastal press conferences in Washington, D.C., and Redmond, Wash., marked by a ritual exchange of tortured metaphors …
Steven Levy
Steven Levy… an animal behaviorist with a bicoastal practice who hosts pet-advice radio shows in New York and Los Angeles. David Lida
David LidaAfter conducting a bicoastal relationship, Kevin and Linda married in 1989. Toby Kahn
Toby Kahn also : living or working on both the east and west coasts of the U.S.
Similarly, one now sees frequent references to "bicoastal" people who go back and forth between New York and Los Angeles. Hans Fantel
Hans Fantel The actor flies back and forth as often as his schedule will allow, but being bicoastal has more than its share of drawbacks. Mary Alice Kellogg
Mary Alice Kellogg 
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How Bicoastal Changed Its Meaning
Bicoastal is a word whose meaning shifted in the 1970s to reflect our mobile society. Prior to that, the term was occasionally used in general contexts involving both coasts (as in "a bicoastal naval defense"). These days bicoastal is almost always associated with people who make frequent trips between one coast and the other. An article with a Los Angeles dateline published in The New York Times in 1983 declared bicoastal to be "a popular term among an affluent, mobile set of Angelenos." But Angelenos weren't the only ones using the term-by that time, the word had already been appearing in national magazines.
Example Sentences
Recent Examples on the Web This mountain town is outdoorsy yet luxe, and its location near the middle of the country means that everyone on your bicoastal guest list gets a fair shake. Sara Clemence, WSJ, 26 Aug. 2022 This bicoastal life that largely bypasses Los Angeles has allowed Martin to escape the daily incursions of Hollywood banter, though the surprise success of Only Murders has made that harder to sustain. Mikey O'connell, The Hollywood Reporter, 10 Aug. 2022 Two years later, Forma has transformed from a pool house pilates class into a bicoastal boutique business. Elise Taylor, Vogue, 3 Aug. 2022 There’s also plenty of room for creativity given the bicoastal nature of the 16-team conference. Los Angeles Times, 4 July 2022 The 2022 GLAAD Media Awards came to a close in New York City on Friday, with the second of two bicoastal ceremonies revealing the rest of this year’s winners. Christy Piña, The Hollywood Reporter, 6 May 2022 Eisner is a bicoastal artist who grew up in California. Hilary Weaver, ELLE, 11 May 2022 The Actor’s Fund is now the Entertainment Community Fund, the 140-year-old organization announced during its bicoastal annual gala event Monday night. Abbey White, The Hollywood Reporter, 10 May 2022 On Twitter, Instagram and Substack, the 29-year-old New Yorker has been creating a mesmerizing, mirthful, at times harrowing, narrative of her bicoastal life. Peter Stevenson, New York Times, 8 Jan. 2022 See More
Sara Clemence, WSJ, 26 Aug. 2022 This bicoastal life that largely bypasses Los Angeles has allowed Martin to escape the daily incursions of Hollywood banter, though the surprise success of Only Murders has made that harder to sustain. Mikey O'connell, The Hollywood Reporter, 10 Aug. 2022 Two years later, Forma has transformed from a pool house pilates class into a bicoastal boutique business. Elise Taylor, Vogue, 3 Aug. 2022 There’s also plenty of room for creativity given the bicoastal nature of the 16-team conference. Los Angeles Times, 4 July 2022 The 2022 GLAAD Media Awards came to a close in New York City on Friday, with the second of two bicoastal ceremonies revealing the rest of this year’s winners. Christy Piña, The Hollywood Reporter, 6 May 2022 Eisner is a bicoastal artist who grew up in California. Hilary Weaver, ELLE, 11 May 2022 The Actor’s Fund is now the Entertainment Community Fund, the 140-year-old organization announced during its bicoastal annual gala event Monday night. Abbey White, The Hollywood Reporter, 10 May 2022 On Twitter, Instagram and Substack, the 29-year-old New Yorker has been creating a mesmerizing, mirthful, at times harrowing, narrative of her bicoastal life. Peter Stevenson, New York Times, 8 Jan. 2022 See More Word History
First Known Use
1920, in the meaning defined above