What does overload mean?
Overload describes a situation in which a person, machine, electrical system, or online service receives more demand than it can safely or effectively handle. As a verb, it can mean loading a system beyond its capacity, giving someone too many tasks, or supplying an excessive amount of information. As a noun, an overload refers to the excessive demand itself. The word is especially common in computing, engineering, and workplace contexts, but it is also used metaphorically for emotional strain or information overload. Its clear implication is excess: a system is not merely busy but has reached or approached a limit beyond which performance, reliability, or well-being may deteriorate.
To load a system, machine, or person beyond their capacity to cope.
"Heavy traffic can overload the network and slow down the website."
Often used with technical systems, tasks, information, and emotional demands.
An excessive amount of work, pressure, information, or electrical demand that exceeds the capacity of a person or system.
"The team is experiencing a heavy workload and a temporary overload."
The plural form is “overloads.”
The plural is used for separate instances or occurrences of excessive demand, as in “power overloads.”
"The system experienced several overloads during the busiest hours of the day."
From overloaded electrical circuits to overloaded inboxes, the word describes the moment when too much demand meets limited capacity.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does overload come from?
The word combines the prefix over-, meaning “too much” or “beyond a normal amount,” with load, which comes from Old English lād, related to a road or way and to the notion of carrying or conveying. The combination developed in the 19th century in the sense of placing too much weight on a vehicle or structure and was later extended to electrical systems, work, information, and other forms of excessive demand. The root load also gives rise to words such as lade and laden, which share its Germanic ancestry.
Related word forms
How overload is actually used
The word is common in technical, workplace, and everyday descriptions of excessive demands. In computing and electrical contexts, it often implies reduced performance or system failure rather than a complete stoppage. The expression “overload someone with work” is common, while “overload oneself” is often used in the context of work, information, or emotional responsibility.
Easily confused with overload
Overload means to subject something or someone to an excessive load, whereas overlook means to fail to notice or consider something.