What does interlocking mean?
Interlocking describes parts that fit together so closely that they resist separation or cannot move entirely independently. Mechanical examples include gears, rings, doors, and mechanisms whose components must engage correctly for the whole apparatus to function. The word also has an important figurative use: problems, policies, institutions, or economic forces may be described as interlocking when they are closely connected and affect one another. In this sense, the term suggests a network of mutual relationships rather than a single isolated cause or consequence. Interlocking is especially useful in technical, analytical, and organizational writing because it conveys both physical connection and systemic dependence. It is usually placed directly before the noun it modifies, as in “interlocking gears” or “interlocking challenges.” While “interlock” names the action of joining or becoming connected, “interlocking” normally characterizes the connected arrangement or the relationships among the parts.
Joined or arranged so that one part connects securely with another, making separation or independent movement difficult; also, closely connected in a way that makes the parts mutually dependent.
"The design uses interlocking panels that can be assembled without visible fasteners."
Common in both literal mechanical contexts and figurative descriptions of closely related systems, problems, or institutions.
The state or arrangement in which parts are joined together, or the process of becoming connected in a mutually dependent way.
"The report examines the interlocking of regional economies and labor markets."
This noun use is less common than the attributive adjective and is especially likely in formal or analytical writing.
Rare and usually unnecessary; plural forms are more naturally expressed by constructions such as “multiple interlockings” or by recasting the noun as an uncountable process.
"The analysis identifies several interlockings among the region's infrastructure and economic policies."
A zipper is a miniature lesson in interlocking: separate teeth fit together so firmly that the fabric beneath them stays gathered.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does interlocking come from?
Interlocking combines the Latin-derived prefix inter-, meaning “between” or “among,” with lock, from Old English loc, referring to a fastening or means of securing something. The combined form developed from the verb interlock, denoting an action in which parts engage and become secured together. Words such as locker, lockout, and unlock continue to share the same English root.
Related word forms
How interlocking is actually used
Interlocking is usually used attributively before a noun. Its figurative use is especially common in discussion of systems, organizations, risks, and problems, where different elements strongly affect one another.