1 juxtapose, oppose, compare, distinguish, differentiate, discriminate, set or place against; set off:
Contrast life in the 18th century with life today.
2 conflict, differ or diverge or deviate (from):
The two styles contrast sharply. Australian speech contrasts with that of Canada in many respects.
3 comparison; difference, distinction, disparity, dissimilarity:
The author emphasizes the contrasts between the two economic policies.