noun
1. the subordination that occurs when a conjunction makes one linguistic unit a constituent of another
• Hypernyms: ↑conjunction
2. a conjunction (like `since' or `that' or `who') that introduces a dependent clause
• Syn: ↑subordinate conjunction
• Hypernyms: ↑conjunction, ↑conjunctive, ↑connective, ↑continuative
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noun, pl ⋯ -tions [count]
grammar : a conjunction that joins a main clause and a clause which does not form a complete sentence by itself
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Useful english dictionary. 2012.