The phrase "a major week" is correct and usable in written English.
It can be used to describe a week that is significant or important in some context, such as events, deadlines, or activities.
Example: "Next week is a major week for our project, as we have several key meetings and deadlines to meet."
Alternatives: "an important week" or "a significant week".
Over the years, the the All-Star Game has grown from a simple game between the American League and National League's best, to a major, week long extravaganza covered by some 400 media outlets worldwide.
Peyton Hillis (KC) vs. Buffalo — Hillis was a major Week 1 disappointment after plenty of offseason hype, but his measly 7-carry, 16-yard day had a lot to do with the Chiefs falling behind, as the bruiser was a sideline bystander for most of the second half.
Something really dramatic like a major week-long mentoring program for troubled youth in that area; or something radical like, rather than spending money on a convention, choose a city and conduct one big, grassroots, activity-based workshop where you actually see stuff getting done.
Stressing out on Sunday night sets you up for a major work week traffic jam.
Sarkozy's speech marks the start of a major political week in France.
"You're nervous any time you come into a major championship week because you know how big it is," Woods said.
Organiser Sandra Tang says: We've tried to create the buzz of a major Fashion Week by staging a fast-paced timetable of catwalk shows at stores across Eldon Square.
This proves that you don't need to have a fashion degree to get involved and become a major Fashion Week attraction.
Members of the L.P.G.A. will get one last chance to win a major this week at The Evian Championship in Evian-les-Bains Evian-les-Bains
The Student Assembly Against Austerity is co-ordinating a major national week of action in February next year to make the government think twice and rule out any further privatisation of the student loan book.
We have a major this week and, if you can't qualify for a major, I don't see any reason why you should play with the men".
