Meanings of substantial concerns in English

The British pension regulator has said, however, it has substantial concerns with BT's plan for paying down its deficit.

The Commission can either clear the deal, with or without conditions, or open a full-scale investigation if it has substantial concerns.

The Human Rights Commission has " substantial concerns" about the proposed anti-terrorism legislation published last December by the Minister for Justice.

However, the Pensions Regulator has yet to approve the plan after it flagged up " substantial concerns" over the deal in the spring.