The phrase "a host of extra" is correct and usable in written English.
It can be used to describe a large number of additional items or features that accompany something.
Example: "The new software update comes with a host of extra features that enhance user experience."
Alternatives: "a multitude of extra" or "an array of extra".
Meanwhile, among the affluent there are signs that spending on a host of extra luxuries has already started to slow.
It may have a classic, bare-bones design, or its sleek casing may conceal a host of extra functions.
Among the key features to arrive next will be a host of extra mobs, the living creatures that inhabit Minecraft's procedurally generated worlds.
"That sounds sort of in the makeup-world kind of deal — that's not really me," Mario Lopez, a host of "Extra," tells Jonathan.
However, the Dynamique Nav adds a host of extra goodies, including satnav through a 7in touchscreen, dual-zone climate control, keyless entry and starting, colour-changing ambient lighting, automatic headlights and wipers, and rear parking sensors.
Fifty years of engineering studies have yet to turn up an obvious technical reason why an unmanned starship could not be built (crewed ships might be doable too, although they throw up a host of extra problems).
Then came James Blood Ulmer's version, in a murkier vein and with a host of extra-musical connotations.
19) is the most copious to date, with the film itself in its original wide-screen aspect ratio and a host of extras, among them the documentary feature "Hearts of Darkness," about the making of the film.
Michael Fassbender and Marion Cotillard, along with the rest of the cast and a host of extras, spent weeks squelching through icy bogs and warding off frostbite – without a scrap of Gortex between them.
That would probably mean laying off thousands of teachers, and eliminating a host of extras like after-school and early-childhood education programs that parents have come to count on.
