The phrase "a host of concepts" is correct and usable in written English.
It can be used to refer to a large number of ideas or theories in a particular context, often in academic or intellectual discussions.
Example: "In her thesis, she explored a host of concepts related to social justice and equality."
Alternatives: "a multitude of ideas" or "a variety of concepts".
While thinking about its' economic responsibilities, businesses employ many business concepts that are directed towards financial effectiveness – attention to revenues, cost-effectiveness, investments, marketing, strategies, operations, and a host of professional concepts focused on augmenting the long-term financial success of the organization.
Rapid and continuous advances in communications and computer technology are spurring a host of new concepts in road traffic control.
Further, the dual statements about the axioms suggest a much more systematic and thoroughgoing duality about a host of other concepts.
With infectious enthusiasm and excellent examples, Wilson takes the reader through the world of variation, selection, adaptation, interaction effects of genes and the environment, and a host of related concepts.
But what would the theme be? "We looked at a host of different concepts," said Davids, an executive with A&E; since its beginnings in 1984.
Before this decision could be made, a host of various design concepts were developed in the "Design Concepts" subproject.
What we get in exchange is a clear, understandable introduction to a host of thorny technical concepts.
While operating a lawn care business, I gained a great understanding and appreciation for size, shapes' perimeters, square feet and a host of other math concepts and terms that have proven beneficial throughout my life.
Indeed, in a highly influential book, Timothy Williamson (2000) argues that knowledge is unanalyzable and is a concept that should be employed in understanding a host of other interesting epistemic concepts, including the concept of evidence.
Examining the interpretative methods themselves that guide the study of memorials, he argues that in order to understand Chinese tombs, one must not necessarily forget the individual works present in them as the beautiful color plates here will prove but consider them along with a host of other art-historical concepts.
