proper noun
YouTube
YOOT-shoob
proper noun
1
A major video-sharing website where users upload, watch, and comment on videos.
"The tutorial has over a million views on YouTube."
verb
1
Informally, to upload a video to YouTube, or to search for and watch something there.
"I'll just YouTube it to see how the trick is done."
How to Use YouTube
Learner’s notesIn plain EnglishThe video website YouTube, or (informally) the act of using it.
When to use it
Using "YouTube" as a verb ("I'll YouTube it") is casual speech, not formal writing.
Word Forms
YouTubed past tense, YouTubes plural, YouTubes singular
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The tutorial has over a million views on _____.
Etymology
A brand name combining "you" with "tube," an old informal word for television, suggesting a platform where ordinary people broadcast their own content.