Masking meaning

He studied her face intently, masking any emotion.

The fighting which took place after the first week in July was all directed to masking his intention to attack with all speed upon the .Isonzo.

Maybe she has some scent masking thing.

This was stopped almost entirely by the Prussian artillery fire; but the news of its coming spread through the stragglers in the ravine south of the great road, and a wave of panic again swept through the mass, many thousands bolting right upon the front of their own batteries, thus masking their fire at the most critical moment, and something like a crisis in the battle arose.

She had sheered off to starboard about 7:15 P.M., and the " Glasgow," which continued to follow in the wake of the " Good Hope," had to ease down to avoid masking her fire.