concentration

McIlroy backed off a putt for an eagle three after a shout disrupted his concentration.

Senator Elizabeth Warren has called for any Paramount-Warner Brother tie-up to be blocked, as a "dangerous concentration of power".

But in such low concentrations of salt, we don’t consider it killing the yeast.

The concentration of station ownership reduces the number of independent gatekeepers who might push back against political or regulatory pressure.

This is exactly the type of merger that U.S. antitrust agencies have historically scrutinized because of concerns that excessive market concentration gives too much power to a few companies.