What does phasing mean?
Phasing describes arranging something in stages, shifting its timing, or changing one part of a process while another part remains active. Its technical use concerns the relative position of waves or oscillations within repeating cycles: two signals may share the same timing yet be described as in phase or out of phase depending on whether their cycles move together. This relationship can be deliberately adjusted, as in phased antenna arrays or carefully synchronized oscillators. In ordinary organizational and commercial contexts, “phasing in” means introducing a change gradually, while “phasing out” means withdrawing an old system, product, or service in stages. The word is useful because it captures both a technical concept and a broader modern practice: managing change in an orderly sequence rather than making an abrupt transition.
The process of arranging something in stages, shifting its timing, or changing its relative position within a sequence.
"The phased introduction allowed the new system to replace the old one without disrupting service."
Introduce, withdraw, or adjust something gradually or in relation to another component.
"The authorities are phasing in the new safety measures over several months."
Commonly used in the expressions “phasing in” and “phasing out.”
Usually uncountable; a distinct plural is not standard.
"The engineers carefully controlled the phasing of the signal generators."
Two waves can occupy the same moment yet remain out of phase, much like people sharing a room while following different internal clocks.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does phasing come from?
The word derives from “phase,” which entered English by way of French from the Greek phasis, meaning “appearance,” ultimately from phainein, “to show.” The English form first referred to a particular stage or aspect of a process before developing the broader sense of a stage in a recurring cycle. The related English words “phasic” and “phasicity” concern phases or phase relationships, while “phenomenon” comes from a different Greek formation based on the same root idea of appearing or becoming visible.
Related word forms
How phasing is actually used
In technical contexts, especially acoustics, electronics, and signal processing, the term specifically concerns the relative position of a periodic wave or oscillation in its cycle. In general usage, it commonly occurs in the established expressions “phasing in” and “phasing out,” meaning gradual introduction or withdrawal.