Simplified Chinese character 缝

The tone and compound show whether 缝 names an action or an opening. 缝合 means “sew together”; 门缝 is a “door gap,” and 裂缝 is a “crack.”

Warring States period forms combine 糸 (“silk/thread”) with 夆 or 奉 as parts hinting at sound; the later standard form uses 逢. An early dictionary defines sewing clothes with a needle; later meanings include mending and spaces between things.