Sympathize meaning : To have, show or express sympathy; to be affected by feelings similar to those of another, in consequence of knowing the person to be thus affected. To support, favour, have sympathy (with a political cause or movement, a side in a conflict / in an action). To say in an expression of sympathy. To have a common feeling, as of bodily pleasure or pain. To share (a feeling or experience). To agree; to be in accord; to harmonize.