The phrase "a host of commitments" is correct and usable in written English.
It can be used to describe a large number of obligations or responsibilities that someone has.
Example: "With a host of commitments to manage, she found it challenging to balance her work and personal life."
Alternatives: "a multitude of commitments" or "a variety of commitments".
A month after her diagnosis, I was intending to return home to London, where a host of professional commitments could not (or so it seemed) be reneged upon.
States have a host of international commitments and aspirations that create an incentive to avoid all-out warfare and to avoid undermining the rules of war, while a single-purpose terrorist organization may operate without mitigation.
No more estimated bills or manual meter readings We all live busy lives, juggling work and a host of other commitments, so we're frequently not at home when the meter reader comes round or we struggle to find time to do meter readings ourselves.
It sets out a whole host of commitments, from renewal of Trident to maintenance of the army at 82,000.
Instead, they took on a host of new foreign commitments as they prosecuted a multi-front "global war on terror," and defense was one of the few sectors that fared well in a faltering economy.
Considering some of the controversies over what feminism is provides a springboard for seeing how feminist commitments generate a host of philosophical topics, especially as those commitments confront the world as we know it.
It raises a host of questions about what commitments Liu might or might not have made to the president and to what extent she would try to protect him once confirmed.
It was solely a testament to his intelligence, his passion, his commitment to a host of progressive causes and his loyalty to his colleagues and his constituents that he was so warmly embraced.
Runners needlessly spent money on airfares, hotels (from which a good number of displaced Sandy victims were made to leave to make room for runners) and a host of other financial and time commitments that could have been avoided.
12 Additionally, there are those who could but will not exercise sufficiently, perhaps due to the commitment required, particularly time commitment, or a host of psychological or other barriers.
