to add different harmonies (= sounds made by different notes being played or sung at the same time) to a piece of music

I want to reharmonize the song to bring out the beauty of the melody. 我想给这首歌重配和弦，把旋律的美妙展现出来。

The next two bars repeat the melody and reharmonize its close. 下面两个小节重复旋律并给结尾部分重配和弦。

to become suitable for a particular situation again, or to make different people, plans, situations, etc. suitable for each other again

She urged us to reharmonize with ancient forms of knowledge. 她敦促我们把旧知识（和新的）重新融合。

We need to re-harmonize our bodies to the patterns and cycles of nature. 我们需要重新调整我们的身体以适应自然规律和循环。