Heightened meaning

I'd put all of us at a heightened risk with my call.

The outer surface of many of the species presents likewise the most exquisite sculpture, heightened by brilliant shades, or spots of green, red, yellow and bluish black.

In winter the effect is heightened by the snow which caps all the higher peaks.

These dramas, which deal with religious and historical subjects, are of Indian origin, and somewhat resemble the mystery-plays of medieval Europe, a resemblance heightened by the introduction, due to Spanish missionaries, of Christian saints and heroes such asCharlemagne.

Many of his eccentricities, both of conduct and opinion, appear less remarkable to us than they did to his contemporaries; moreover, he seems to have heightened the impression of them by his humorous sallies in their defence.