What does distill mean?
To distill is to purify or concentrate a liquid by heating it until it vaporizes and then cooling the vapor so that it condenses back into a purer form, a process central to chemistry and to the production of spirits such as whisky. By extension, the word is widely used figuratively: to distill an argument, a book, or years of experience is to reduce it to its most essential points, discarding what is unnecessary. This metaphorical sense gives the verb a refined, almost literary flavor — one distills wisdom, lessons, or meaning into something concentrated and clear. The word derives ultimately from Latin destillare, "to drip down," reflecting the way purified droplets fall from a still. British English usually spells it "distil"; American English doubles the final consonant. Related forms include distillation, distiller, and distillery, which refer respectively to the process, the person performing it, and the place where it occurs.
To purify a liquid by heating it until it vaporizes and then condensing the vapor back into liquid form, thereby separating it from impurities or other substances.
"Water can be distilled to remove dissolved salts and minerals."
British spelling is usually 'distil'.
To extract the essential meaning, substance, or most important elements of something.
"He distilled his forty years of experience into a short, practical guide."
The word "distill" literally means "to drip down" — from Latin destillare — because early distillers watched purified droplets fall drop by drop from the condenser's spout.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of distill
Distill comes from Latin destillare, formed from de- ("down") plus stillare ("to drip"), itself related to stilla ("a drop"). The word entered English via Old French distiller around the late Middle English period, originally referring specifically to the alchemical and medicinal practice of purification by evaporation and condensation. Its figurative sense of extracting essentials developed later, extending the physical process into intellectual territory. Cognate forms appear across Romance languages, such as French distiller and Italian distillare.
Related word forms
How distill is actually used
In British English the spelling is typically "distil," while American English prefers "distill." The verb carries a neutral register but appears frequently in both technical/scientific writing (chemistry, spirits production) and literary or rhetorical contexts when used figuratively. The figurative sense often connotes careful intellectual refinement — reducing something complex to its essence — and tends toward a slightly formal or elevated tone.
Easily confused with distill
"Instill" means to gradually introduce an idea, feeling, or habit into someone's mind over time, while "distill" means to purify a liquid through heating and condensing, or figuratively to extract the essential part of something.