Tiếng Việt · Word Attested

gián

[zaːn˧˦]

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

Sense 1

Both English Tiếng Việt

Meaning · English

(noun) cockroach (type of insect)

Nghĩa · Tiếng Việt

loại côn trùng

Machine-translated — suggest a fix

Where it’s used: Used Toàn quốc & hải ngoại · Vietnam-wide & diaspora

bốn loài trung gian truyền bệnh: ruồi, muỗi, gián, chuộtthe four (major) groups of disease carriers: flies, mosquitoes, cockroaches, rats and mice

Đêm qua có con gián bò vào bếp.A cockroach crawled into the kitchen last night.

Wiktionary example (CC BY-SA 4.0)

Sources & notes

Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗

Both English Tiếng Việt

Meaning · English

(noun) short for gián điệp (“spy”)

Nghĩa · Tiếng Việt

người đi mật vụ

Machine-translated — suggest a fix

phản giáncounter-intelligence

Wiktionary example (CC BY-SA 4.0)

What does “gián” mean?

(noun) cockroach (type of insect)

Is “gián” formal or informal?

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