English · Phrasal verb Attested

boil down

In real, traceable use. Part of the curated seed collection; community review is coming.

Sense 1

Both English Tiếng Việt

Meaning · English

To reduce in volume by boiling.

Nghĩa · Tiếng Việt

Giảm thể tích bằng cách đun sôi

Machine-translated — suggest a fix

Where it’s used: Used American English

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

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Both English Tiếng Việt

Meaning · English

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

Nghĩa · Tiếng Việt

Được giảm xuống thành phần cốt lõi

Machine-translated — suggest a fix

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Both English Tiếng Việt

Meaning · English

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

Nghĩa · Tiếng Việt

Giảm xuống thành phần quan trọng nhất

Machine-translated — suggest a fix

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

What does “boil down” mean?

To reduce in volume by boiling.

Is “boil down” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.