expand
verb (used with object)
to increase in extent, size, volume, scope, etc..
has been expanding
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present perfect progressiveof expand (3rd person singular).present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
Google has been expanding its efforts to put orbital data centers in space as it ramps up its AI development, and SpaceX Chief Executive Elon Musk has expressed interest in the unproven technology.
From The Wall Street Journal ● Jul. 23, 2026
The Los Gatos, Calif., streamer over time has been expanding its library of content, adding games, live programming such as boxing matches and football games, alongside movies and TV shows.
From Los Angeles Times ● Jul. 7, 2026
Many private-equity firms historically aimed to hold investments for around three to five years, though the time frame has been expanding.
From The Wall Street Journal ● Jul. 7, 2026
However, the multiple has been expanding recently on confidence the demands of artificial-intelligence hardware will lead to a so-called ‘supercycle’.
From Barron's ● Jun. 8, 2026
The universe had a beginning, about 15 billion years in the past, and space has been expanding ever since.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
