an arrangement in which two or more things are positioned in a straight line or parallel to each other

in alignment This mattress supports the body in a way that keeps the neck and spine in alignment.

out of alignment The problem is happening because the wheels are out of alignment. 出现这个问题是因为车轮定位不正。

an agreement between a group of countries, political parties, or people who want to work together because of shared interests or aims

New alignments are being formed within the business community. 在商界，新的联盟关系正逐渐形成。