"milestone celebration" is a correct and usable phrase in written English.
You could use it to refer to a special event or ceremony held to mark the achievement of a particular milestone. For example, "The company held a milestone celebration to mark 10 years of successful business."
If your year ends in 1 or 6, you have a four-day milestone celebration ahead of you.
Interest is higher than usual this year, organizers say, not only because of the race's milestone celebration but also because of a strong turnout by teams backed by automakers.
To make the most of a milestone celebration, it helps to have a plan.
Cover: Jeff Bezos, Amazon founder and CEO, speaks at The Economic Club of Washington's Milestone Celebration in Washington, Thursday, Sept. 13, 2018.
The films selected have not always taken place in New York, but as part of its milestone celebration, Grand Classics has gone back to its Big Apple roots with its "New York in Film" summer screenings.
Once you have a montage assembled, this would make a great slide show at a graduation party, birthday party, or other milestone celebration.
"As with previous royal weddings and milestone celebrations, you can expect hours of television coverage streamed live from the lawns of Windsor Castle and the heights of St George's Chapel nave". The Telegraph predicts.
Guests visiting Disney stores will see live streams of the multiple theme parks, fireworks displays on giant screens, and get personalized experiences for children, including birthday parties and other milestone celebrations.
Milestone celebrations included a series of mini exhibitions showcasing new and vintage wrap dresses; the launch of the accompanying Journey of a Dress coffee table book, and a Pop Wrap limited edition collection of wrap dresses in collaboration with The Andy Warhol Foundation.
Over the last few years, private boudoir parties have become an incredibly popular option for birthdays, milestone celebrations, hen nights and bachelorette parties.
Today, Huntsham Court offers guests their very own quintessential English country house experience as the property can rented out for a wide variety of events, from a country house party to a wedding, milestone birthday celebration, family reunion or a corporate gathering.
