- Today's Word
Permeate
PUR-mee-ayt
Definition
- (verb) To spread throughout or penetrate every part of something.
Example
The scent of freshly baked bread permeated the entire house, making everyone’s mouth water.
Fun Fact
Permeation is a fundamental concept in science, from how water seeps through soil to how ideas spread through culture. The term is often used metaphorically—love can permeate a story, tension can permeate a room, and innovation can permeate an industry. Interestingly, in physics and chemistry, permeability describes how easily substances (like gases or liquids) move through materials, which is why certain fabrics “breathe” better than others!
(verb) To waver indecisively between different options or opinions; to go back and forth without reaching a conclusion.
She vacillated for weeks over whether to take the job offer — drafting acceptance emails she never sent, then resignation letters she never printed, oscillating between certainty and doubt with every passing hour.
Vacillate derives from the Latin vacillare, meaning “to sway” or “to totter” — originally describing the physical motion of something rocking unsteadily from side to side. It entered English in the 16th century carrying both its literal sense of physical swaying and its figurative sense of a mind that cannot settle — rocking back and forth between positions without ever finding its footing on either side.