What is "heated up"

Usage examples of "heated up".

Leftover steak sandwich for him, SpaghettiOs heated up on the wood stove for me.

Her body heated up further, her blood pumping harshly through her veins.

Steady, very steady, and strong-and then a quick jerk and flutter when the action heated up on-screen.

The water was cold, it hadn't yet heated up, but maybe that was a good thing.

So they put heaters down in boreholes and heated up the whole shale deposit.

With the wrought-iron tools, the edge wasn't ground-that was wasteful of iron-it was heated up and the edge was beaten sharp.

Their screen tubes heated up violently in the brief moment it took to dive behind the hill, a tube fused, and blew out.

At the surface, the water appeared as a swirling bluish green, but tracing downward, the colors slowly shifted to a menacing red-orange as the temperatures heated up.

When the Hinder Stars stopped trading with Earth, commerce fell off, particularly as the war heated up.