The phrase "a broad umbrella" is correct and usable in written English.
It can be used to describe a wide-ranging or inclusive category that encompasses various elements or topics.
Example: "The new policy provides a broad umbrella for all departments to collaborate on sustainability initiatives."
Alternatives: "a wide scope" or "a comprehensive framework".
Two Kinds of Photosensitivity Photosensitivity — "a broad umbrella," Dr. Sarnoff said — refers to two types of reactions.
The term 'habitat fragmentation' is often used inconsistently and as a broad umbrella for many patterns and processes that accompany landscape change.
This severely damaged the reputation of his Union Civica Radical party and left the Peronists — a broad umbrella group that has included both left- and right-wing leaders — as the only real game in town.
The term "Neo-Pagan" is a broad umbrella covering a range of earth-based spiritual traditions, most of which are a riotous blend of ancient ideas and modern sensibilities.
Yesterday, I went to a conference for parties and people hoping to form a broad umbrella committee to begin to address issues like the economy and the constitutional process during this interim period.
On Afghanistan-Pakistan policy, the toughest issue facing Obama, both men favor a continuation of current strategy -- with the goal of gradually negotiating a political settlement with the Taliban under a broad umbrella of regional support.
In other instances, one observes a broad, umbrella-like, fibrous structure measuring 83-90 × 70-50 nm with star-like elemenms.
Recent studies suggested two general topologies of these glycans with respect to their specificities; HAs with high-affinity to human-adapted influenza A viruses are characterized by a broad "umbrella-like" topology while those for avian-adapted ones adopt a narrower "cone-like" topology.
Fannie Mae also has a broader umbrella, called Refi Plus, that can be used by people whose mortgages finance second homes and income properties.
When researchers at the University of Florida applied a battery of ecological criteria to longleaf pine forests, they found that the gopher tortoise, another keystone species, provided a broader umbrella for threatened species in that habitat.
THE Obama administration's proposals to reform financial regulation sound ambitious enough as they aim to bring companies like A.I.G. under a broader umbrella of government rule-making and scrutiny.
