What does assignable mean?
Assignable describes something that can be assigned, allocated, or formally handed over to another person or entity. It appears most often in legal and commercial language, where contracts, leases, patents, or financial instruments may be described as freely assignable (meaning they can be transferred to someone else) or non-assignable (meaning they cannot). The word also has a technical life in statistics and manufacturing: an "assignable cause" is an identifiable, specific factor behind a defect or variation, as opposed to random background noise. Derived from the verb "assign," which traces back through Old French "assigner" to the Latin "assignare" (to mark out or allot), it carries connotations of formal authority and deliberate delegation rather than casual sharing. Because it signals whether ownership or responsibility may legitimately change hands, assignable is a precise, high-stakes term in negotiations, licensing, and process control.
adjectiveCapable of being assigned, designated, or transferred to someone else; especially able to be legally transferred to another party, as with a contract, right, or financial instrument.
- Capable of being transferred or delegated to another person, as in legal or contractual contexts.
- Able to be attributed or traced to a particular source or cause, as in statistics and quality control.
"The patent rights are fully assignable to any subsidiary of the company."
"Under the terms of the lease, parking spaces are assignable at the landlord's discretion."
"The engineer determined that the drop in output was due to an assignable cause rather than random variation."
In quality control, an "assignable cause" is the specific culprit behind a defect — and hunting one down can save a factory millions.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of assignable
Assignable derives from the verb assign, which entered English from Old French "assigner" and ultimately from Latin "assignare," meaning to mark out, allot, or appoint — formed from ad- ("to") plus signare ("to mark"). The adjective form developed in English by the late Middle English period to describe things capable of being allotted or attributed. It shares this Latin root with related words such as signify, design, designate, and signal.
Related word forms
How assignable is actually used
Formal register; common in law, finance, real estate, and quality management. In statistical process control, "assignable cause" (or "special cause") contrasts with "common cause" variation — a distinction introduced by Walter Shewhart.
Easily confused with assignable
"Assignable" means capable of being assigned or transferred, while "assailable" means vulnerable to attack or criticism.