What does linearly mean?
Linearly means in a straight, sequential, or mathematically proportional manner. In everyday language, it often describes a process that proceeds directly from one stage to the next without an intervening or branching sequence. For example, costs that rise linearly with usage increase by a consistent amount for each additional unit. In mathematics, physics, and engineering, the word has a more precise meaning: a relationship is linear when it can be represented by a straight line or by an equation of the form y = mx + b. Such relationships imply constant rates of change and are used to describe phenomena such as uniform motion, electrical resistance, and the relationship between voltage and current. The word is useful because it distinguishes orderly, proportional development from curved, variable, or nonlinear patterns.
adverbIn a straight or sequential manner; according to a linear relationship or progression.
- In a straight or sequential manner, with each stage following directly from the preceding one.
- In a manner that can be represented by a straight line or a linear relationship.
"The particles expanded linearly as the temperature increased."
"The fee increases linearly with the number of items purchased."
"She arranged the appointments linearly, beginning with the most urgent case."
Linear mathematics helped humanity describe motion, measurement, and eventually the course of space itself.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does linearly come from?
The English adverb was formed from the adjective linear with the suffix -ly. Linear comes through French from Latin linearis, an adjective derived from linea, meaning “row” or “line.” Related English words include line, linearity, and lineage, all reflecting the same Latin family of forms.
Related word forms
How linearly is actually used
In general use, the adverb can imply a direct, orderly progression. In mathematics and physics, it specifically describes a relationship or change that is proportional to another quantity or variable.