English · Phrasal verb Attested

bunker up

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

Sense 1

Both English Tiếng Việt

Meaning · English

To fuel up a ship, or sometimes other modes of conveyance.

Nghĩa · Tiếng Việt

nạp nhiên liệu cho tàu hoặc phương tiện khác

Machine-translated — suggest a fix

Where it’s used: Used American English

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 bunker down; to build or stock a bunker.

Nghĩa · Tiếng Việt

xây dựng hoặc trữ trong hầm

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 “bunker up” mean?

To fuel up a ship, or sometimes other modes of conveyance.

Is “bunker up” formal or informal?

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