boil down

verb

To reduce in volume by boiling.

“He boiled the soup down so it wouldn't be so weak.”

Meanings

verbboil down (third-person singular simple present boils down, present participle boiling down, simple past and past participle boiled down)

present singular third person boils down · participle present boiling down · participle past boiled down · past boiled down

  1. intransitivetransitiveTo reduce in volume by boiling.

    He boiled the soup down so it wouldn't be so weak.

  2. intransitiveTo become reduced (to the most central elements or ingredients: to the essence, core, or implication for action).

    So what this boils down to is that you still owe me that fifty bucks.

    1 more example

    For England, everything now boils down to what happens against Poland on Tuesday.

    2013 October 11, Daniel Taylor, “Andros Townsend calms England's nerves in taming of Montenegro”, in The Guardian, archived from the original on 25 May 2021

    Synonyms: come down to

  3. transitiveTo reduce (to the most central elements or ingredients: to the essence, core, or implication for action).

    My dissertation is 342 pages long, and I'm required to boil it down to a one-page abstract?!

Synonyms & antonyms

verbTo become reduced (to the most central elements or ingredients: to the essence, core, or implication for action).

More synonyms by meaning

verbbe the essential element

Broader

verbbe cooked until very little liquid is left

verbcook until very little liquid is left

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

As an allusion to the technique of reduction or decreasing liquid content of food by boiling much of its water off.

Full word history & related roots →

Translations

Catalan reduir
  • reduirTo reduce
French se résumer
  • se résumerTo become reduced
German einkochen
  • einkochenTo reduce
Italian condensare, ridurre
  • condensareTo reduce
  • ridurreTo reduce
  • semplificareTo reduce
Japanese 煮詰める
  • 煮詰める (nitsumeru)Used other than with a figurative or idiomatic meaning
Korean 졸다, 조리다
  • 졸다 (jolda)To become reduced
  • 조리다 (jorida)To reduce
Polish schodzić do, zejść do
  • schodzić doUsed other than with a figurative or idiomatic meaning
  • zejść doUsed other than with a figurative or idiomatic meaning
  • sprowadzać się doTo become reduced
  • sprowadzić się doTo become reduced
  • sprowadzać doTo reduce
  • sprowadzić doTo reduce
Portuguese diminuir, resumir-se
  • diminuirUsed other than with a figurative or idiomatic meaning
  • resumir-seTo become reduced
  • condensarTo reduce
  • resumirTo reduce
  • simplificarTo reduce
Russian выпа́ривать, вы́парить
  • выпа́ривать (vypárivatʹ)Used other than with a figurative or idiomatic meaning
  • вы́парить (výparitʹ)Used other than with a figurative or idiomatic meaning
  • своди́ться (svodítʹsja)To become reduced
  • свести́сь (svestísʹ)To become reduced
  • сжать (sžatʹ)To reduce
  • свести́ (svestí)To reduce
Spanish hervirle el agua a, herver el líquido de
  • hervirle el agua aUsed other than with a figurative or idiomatic meaning
  • herver el líquido deUsed other than with a figurative or idiomatic meaning
  • resumirseTo become reduced
  • reducirse aTo become reduced
Ukrainian зво́дитися, звести́ся
  • зво́дитися (zvódytysja)To become reduced
  • звести́ся (zvestýsja)To become reduced
Cite this entry
APA

boil down. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/boil%20down

MLA

“boil down.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/boil%20down. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “boil down,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/boil%20down.

Source: boil down on Wiktionary, CC BY-SA 4.0.