joined

Joined is the past tense and past participle of the verb join. It indicates that two or more elements have been connected, united, or brought together. As an adjective, joined describes things that are physically linked or functioning as a single unit, such as joined rooms or a joined edge. The term appears in everyday language, engineering, and data contexts.

In construction, manufacturing, and crafts, joining is a core operation. Methods include welding, soldering, bolting, riveting, doweling, adhesive bonding, and sewing. The result is a joined component, seam, or assembly. The choice of method depends on materials, strength requirements, and durability. A joined edge or corner implies the pieces have been fixed as a single structure, often bearing load or distributing forces across the joint.

In computing and data management, "join" is a relational operation. A joined table or joined dataset combines rows from two or more sources based on a shared key. Common join types include inner join, left join, right join, full join, and cross join. The term "joined" denotes the outcome when the matching condition holds, although handling of non-matching rows varies by join type.

In handwriting, "joined-up writing" describes cursive text where letters are connected within words. In linguistics or grammar, the concept can appear in discussions of compounds or affixation when elements are linked.