The phrase "a heavy competition" is correct and usable in written English.
It can be used to describe a situation where there is a significant level of rivalry or contest among participants, often in a competitive environment such as sports, business, or academics.
Example: "The annual science fair saw a heavy competition among the students, each showcasing innovative projects."
Alternatives: "intense competition" or "fierce competition".
The two campaigns are engaged in a particularly heavy competition for black voters, who, Democratic officials say, will most likely account for more than half the electorate in the primary Saturday.
Social networking remains a space with heavy competition, where scale defines success, and unfortunately AOL is not in a position to further fund and support Bebo in pursuing a turnaround in social networking.
"It is clear that social networking is a space with heavy competition, and where scale defines success," the memorandum said.
As we've previously noted, search share has been a concern with heavy competition from Google and others.
As we evaluate our portfolio of brands against our strategy, it is clear that social networking is a space with heavy competition, and where scale defines success.
Young musicians making their New York debuts have the problem of drawing an audience, often against heavy competition, before they have established a reputation, let alone marketability.
[A16.] Ex-Nabisco Chief to Head Gillette James M. Kilts, who turned around Nabisco in his three years there, was hired as the chairman and chief executive of Gillette, which has struggled with a weak euro and heavy competition.
This is usually a sign of a soft rental market or heavy competition, so you may want to try another neighborhood or property type.
Without much money in the bank and under heavy competition from a dominant market leader, they proved themselves able not only to survive but to thrive.
With heavy competition for a more limited number of package destinations, as carriers switch away from Turkey and Egypt, prices have come down and more people have already opted to take a charter flight this year.
