"an array of practices" is a correct and usable phrase in written English.
You can use it when referring to a large group or selection of related practices. For example, "The new doctor was unfamiliar with our array of practices."
The Athenian democracy encompassed participatory structures for making decisions, resolving disputes, and managing activities; a set of communal values that defined people's relationships with one another; and an array of practices of engagement that ensured the broad participation of the entire citizenry.
It is, rather, the product of an array of practices by multiple government institutions that have the cumulative effect of a vast cover-up.
Our goal at Mindfulness First is to help not only educate teachers on the importance of taking this time, but to provide them with an array of practices to choose from, so they may develop their own practices once our time with them is done.
The right side also includes an Emerging Issues section highlighting articles posted by practitioners in an array of practice areas.
He discovered an array of unsound practices, like using long-term debt to pay for short-term expenditures.
Mr. Rumsfeld has called for changing an array of Defense Department practices, including environmental rules and how the Pentagon reports to Congress.
"The government of Iran disguises its involvement in proliferation and terrorism activities through an array of deceptive practices," the Treasury Department said.
His office is conducting a probe of Baltimore's City Council, whose 19 members are all Democrats, and has sought documents detailing an array of financial practices.
The civil class-action lawsuit grew out of a three-year-old federal antitrust investigation into accusations that top officials of the auction houses colluded on an array of business practices including fixing the prices charged to buyers and sellers.
The left and liberal perspectives converge in a cultural relativism that discourages outside interference with an array of traditional practices, from purdah to child marriage to genital mutilation, that constrict the lives of women in the third world.
The booming cosmetic treatments industry is facing a wide-ranging crackdown over an array of dubious practices that exploit, pressurise and pose a danger to often vulnerable patients who are hoping to improve their appearance.
