Since then, the Government's negotiating line has measurably hardened.

And truthfully, without question, it seems like the lines have hardened quite dramatically over the last few months.

At his words her eyes narrowed and the sweet line of her lips hardened in anger.

Today, it would be harder: the lines, political and cultural, have hardened.

The line of the man's mouth had hardened, so had his voice.

But he acknowledged, "The lines may have hardened since then."

But by the late 1990s, the lines on the matter had hardened.

The lines in Damion's face hardened, but he didn't answer.

She no longer looked at him directly, and the line of those full soft lips had hardened.

As the battle between the factions has intensified, ethnic lines in the camp have hardened.